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Black powder substitute
Black powder substitute
Black powder substitute
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Pyrodex, a modern black powder substitute for muzzleloaders, in FFG RS (Rifle/Shotgun) size

A black powder substitute is a replacement for black powder (gunpowder), primarily used in muzzleloading firearms. Substitutes may have slightly different properties from gunpowder such as: reduced sensitivity as an explosive, increased efficiency as a propellant powder, different density, and/or reduced ignition efficiency. This also means that substitutes are subject to different restrictions than gunpowder.

Uses

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Black powder was the first explosive ever invented, and was the primary propellant used firearms around the world for many centuries. However, in modern times, smokeless powder has largely replaced black powder as the most common firearm propellant. Still, black powder remains in use for certain types of firearms, including historical weapons from before the invention of smokeless powder, such as muzzleloaders. Black powder substitutes are propellants designed to provide explosive force similar to that of black powder, primarily for use in such firearms, despite being legally classified as "smokeless propellant".[1][2]

In the United States, many states mandate the use of black powder or "equivalent" black powder substitutes during the portion of deer hunting season in which only muzzleloading firearms can be used, and many outright prohibit the use of smokeless powders during this time.[3]

Types

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Hodgdon's Pyrodex is a widely available substitute for black powder. Pyrodex is less sensitive to ignition than black powder. It also contains more energy per unit of mass than black powder, but is less dense. Therefore, it is often substituted at a 1:1 ratio by volume for black powder.[4] Pyrodex is similar in composition to black powder (which consists of potassium nitrate, charcoal, and sulfur)[5] but incorporates several other compounds:[6][7]

Pyrodex has a slower combustion and produces a lower maximum pressure than black powder yet provides the same amount of work and a higher projectile velocity.[8][9] It is often used for shooting historical weapons.[8] Originally available as loose powder in two granularities, RS (Rifle/Shotgun) and P (Pistol). Where RS (Rifle/Shotgun) is equivalent to FFg black powder and P (Pistol) is equivalent to FFFg black powder on the Fg (coarsest) to FFFFg (finest) granularity scale. While Pyrodex offers improved safety and increased efficiency (in terms of shots per pound of powder) over black powder, the level of fouling is similar to black powder as Pyrodex is caustic and corrosive. Therefore, the same cleaning lay regimen used on black powder fouling must be employed when Pyrodex has been used.

Hodgdon also makes "Triple Seven", a sulfur-free black powder substitute containing potassium perchlorate and 3-Nitrobenzoic acid, and "Black Mag3".[10] These are both more energetic by mass than black powder and can produce higher velocities and pressures. Triple Seven is a volumetric substitute for black powder, and due to its higher velocity, it is recommended to reduce the load by 15%.[11] The carbon-based fuel burned in this case is from the sugar family, not from charcoal.

Measurement

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The grain is the traditional measurement of the weight of bullets, black powder and smokeless powder in English-speaking countries. It is the unit measured by the scales used in handloading; commonly, bullets are measured in increments of one grain, gunpowder in increments of 0.1 grains.[12] There are 7,000 grains in one pound.

Black powder substitutes are formulated to be a volume-for-volume equivalent of black powder, not an equivalent mass-for-mass (weight-for-weight).[13] Black powder substitutes are measured by volumetric measurement techniques, not in grains on a scale, due to the difference in density compared to black powder. For example, to measure a "60 grain equivalent" of black powder substitute suitable for use in a muzzleloader rifle, one uses a volumetric measure that produces a volume of black powder equivalent equal to the volume of a mass of 60 grains of black powder. For example, because Pyrodex, a common black powder substitute, is less dense than black powder, a measurement by weight on a scale of 60 grains of mass of Pyrodex would be near a 30 percent overload.

Volume equivalence is a benefit in loading muzzleloading firearms, traditionally loaded using volumetric measures. This becomes an issue when fabricating black-powder cartridges through handloading using a black-powder substitute in place of black powder, since it is common practice to measure by weight when loading cartridges (there are published conversion tables).

Disadvantages

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With the increased safety of the black powder substitutes often comes a reduced sensitivity to ignition. Flintlocks in particular need very sensitive, finely granulated powder for use in the flash pan, and black powder tends to perform more reliably in these and traditional caplock guns than substitutes. Modern in-line muzzleloaders provide a stronger ignition than traditional designs and this helps to increase reliability with less flame-sensitive substitutes. In addition, magnum percussion caps are often recommended for use with black powder substitutes for both inline and traditional caplock guns, in place of the #11 percussion caps traditionally used with black powder in these guns, to achieve the best ignition reliability.

When used for recovery system ejection charges in high-power rocketry, black powder substitutes need a greater degree of confinement to ensure a complete burn and generation of sufficient ejection pressure. This can be achieved by wrapping 2–3 layers of electrical tape over the ejection charge canister before installation.[citation needed]

Legality

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United States

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Black powder substitutes can be transported and stored in interstate commerce in the United States using the smokeless powder regulations instead of the more restrictive black powder regulations. As a result, black powder substitutes are becoming more commonly available than traditional black powder.

United Kingdom

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Prior to July 2024, Pyrodex was classified as UN0161 and therefore benefited for an exemption under the Explosives Regulations 2014, meaning that it did not require a certificate to buy or store in the United Kingdom; an RCA (recipient competent authority) document was also not needed for transportation.[14]

In 2024, the manufacturer of Pyrodex changed the product's classification, resulting in the exemption previously afforded to it no longer applying and it can now only be purchased and possessed with an Explosives Certificate covering UN0499 and UN0501.[15] It must also be stored in the same fashion as black powder, namely in a locked wooden box with adequate separation distance and internal volume.[16]

There are varying opinions as to whether Pyrodex bought prior to the reclassification and having the previous UN0161 number can be possessed without a certificate, with some English police forces considering one necessary while other organisations take a different position, namely that the applicable UN classification is the one that applied when the product was manufactured and packaged.[15]

Citations

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  1. ^ Carter, Aaron. "How to Choose the Perfect Powder for Your Muzzleloader". American Hunter. National Rifle Association. Retrieved 28 March 2024.
  2. ^ Venturino, Mike. "Using Hodgon's Pyrodex Pellets for Cowboy Action Handloads". Shooting Times. Outdoor Sportsman Group. Retrieved 28 March 2024.
  3. ^ Bernett, Dave. "Muzzleloader law breakdown throughout the western states". GOHUNT. Retrieved 28 March 2024.
  4. ^ Fadala, Sam (2006). The Complete Blackpowder Handbook (5th ed.). Gun Digest Books. p. 203. ISBN 978-0-89689-390-0. Second, Pyrodex provides more shots per pound than blackpowder because it is less dense.
  5. ^ Earl, Bryan (1978). "Chapter 2: The Development of Gunpowder". Cornish Explosives. Trevithick Society. ISBN 9780904040135.
  6. ^ Routon, Benjamin J.; Kocher, Brandon B.; Goodpaster, John V. (January 2011). "Discriminating Hodgdon Pyrodex® and Triple Seven® Using Gas Chromatography-Mass Spectrometry: DISCRIMINATION OF HODGDON PYRODEX® AND TRIPLE SEVEN®". Journal of Forensic Sciences. 56 (1): 194–199. doi:10.1111/j.1556-4029.2010.01534.x.
  7. ^ US4128443A, Pawlak, Daniel E. & Levenson, Michael, "Deflagrating propellant compositions", issued 1978-12-05 
  8. ^ a b Koch, Ernst-Christian (2021). High Explosives, Propellants, Pyrotechnics. Berlin: De Gruyter. pp. 578–579. ISBN 978-3-11-066052-4.
  9. ^ Barnes Bullets tests on their projectiles using Pyrodex,Hodgdon's Triple Se7en and black powder https://www.barnesbullets.com/wp-content/uploads/2021/05/Muzzleloader-Data.pdf
  10. ^ Hendricks, Bryan. "Back to basics: Muzzleloaders are fun alternatives to modern firearms". Arkansas Democrat Gazette. Retrieved 28 March 2024.
  11. ^ "Hodgdon Loading Notes Pyrodex and 777". Archived from the original on 2017-05-20.
  12. ^ "International Practical Shooting Confederation" (PDF). IPSC Canada. January 4, 2004. Archived from the original (PDF) on 2007-07-09. Retrieved 2007-11-30.
  13. ^ "Measurement Differences: Black Powder vs Pyrodex". Handloading.com. Retrieved July 9, 2025.
  14. ^ "Transfer of explosives". www.hse.gov.uk.
  15. ^ a b "Important information for users of Pyrodex". basc.org.uk.
  16. ^ "BLACK POWDER Storage - THE MANUFACTURE AND STORAGE OF EXPLOSIVES REGULATIONS 2005". bristolmuzzleloaders.co.uk.
[edit]
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Black powder substitute

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Black powder substitutes are synthetic propellants developed as direct volumetric replacements for traditional black powder in muzzleloading firearms, engineered to mimic its low-pressure combustion profile while providing superior attributes such as cleaner burning, reduced residue accumulation, greater resistance to moisture absorption, and lower corrosiveness to metal components. Pioneered by the Hodgdon Powder Company with the introduction of Pyrodex in , these substitutes typically incorporate oxidizers like alongside fuels and additives to achieve up to 30% higher muzzle velocities than equivalent volumes of black powder, which consists of , , and , thereby enhancing efficiency without exceeding the pressure tolerances of historical arms. Prominent examples include Pyrodex in grades suited for rifles, shotguns, and pistols; Hodgdon's Triple Seven, valued for minimal cleanup requirements; and Blackhorn 209, a propellant optimized for breech-loading inline muzzleloaders with electronic ignition, though substitutes generally demand modern percussion caps or primers for reliable ignition and may underperform in mechanisms compared to authentic black powder.

History

Invention and Early Development

The first modern black powder substitute, Pyrodex, was developed in 1972 by chemist Dan Pawlak, who formulated a propellant that replicated the ballistic performance of traditional black powder while reducing hazards such as impact sensitivity and moisture absorption. Pawlak's innovation addressed longstanding issues with black powder, which had remained largely unchanged since its 9th-century origins in China and posed risks in storage and handling due to its composition of 75% potassium nitrate, 15% charcoal, and 10% sulfur. Early development of Pyrodex involved collaboration between Pawlak and the Bullet Company, focusing on creating a safer alternative suitable for muzzleloading firearms amid a 1970s resurgence in black powder shooting driven by expanded hunting regulations. In 1975, the Hodgdon Powder Company partnered with Pawlak to commercialize the product, leading to the formation of the Pyrodex Corporation with Pawlak as president by January 1976. Pyrodex was introduced to the market in as the first widely available black powder substitute, offering higher velocity and energy than equivalent black powder loads while producing less . Development efforts emphasized compatibility with existing muzzleloaders, though it required specific loading data to avoid . Tragically, Pawlak died on January 27, 1977, in an at the Pyrodex manufacturing plant, but Hodgdon's subsequent marketing efforts ensured the substitute's initial success.

Commercial Introduction and Adoption

The first commercial black powder substitute, Pyrodex, was developed by chemist Dan Pawlak and introduced to the market by the Hodgdon Powder Company in 1976. This proprietary formulation was designed to replicate the ballistic performance of black powder while offering advantages such as reduced fouling, easier cleanup, and approximately 30% higher muzzle velocities for equivalent loads in muzzleloading firearms. Initial production involved forming the Pyrodex Corporation in January 1976, following discussions between Hodgdon and Pawlak, who had prototyped the mixture as early as 1972. Pyrodex's commercial launch targeted the growing muzzleloading enthusiast community, emphasizing its safety in handling compared to traditional black powder, which is more hygroscopic and prone to accidental ignition. Adoption of Pyrodex accelerated throughout the late 1970s and 1980s, driven by effective marketing and distribution through Hodgdon's established channels, making it the dominant propellant in the black powder substitute category by the . Shooters reported practical benefits including less residue buildup in barrels, which reduced cleaning time and allowed for multiple shots without immediate maintenance during or range sessions. By the mid-, innovations like Pyrodex Pellets—premeasured charges introduced in 1996—further simplified loading for inline muzzleloaders, contributing to broader acceptance among recreational and competitive shooters. This shift paralleled the resurgence of muzzleloading sports, with Pyrodex enabling higher performance without the corrosive byproducts of black powder. Subsequent substitutes built on Pyrodex's foundation, with Hodgdon's Triple Seven launched in as a cleaner-burning alternative that eliminated the need for soap-and-water cleaning. Triple Seven gained traction for its reduced residue and compatibility with modern muzzleloaders, particularly in states with extended hunting seasons for inline rifles. Adoption metrics are reflected in market dominance, where Pyrodex and its successors captured a significant share of the market, though traditional retained niches in historical reenactments requiring authenticity. Regulatory considerations, such as ATF classification of these substitutes as non-explosive for storage purposes in some contexts, also facilitated commercial growth and consumer access.

Chemical Composition

Fundamental Differences from Black Powder

Black powder substitutes differ from traditional black powder primarily in their oxidizers and additives, engineered to mitigate issues like hygroscopicity and residue corrosiveness while approximating characteristics. Traditional black powder comprises approximately 75% as the oxidizer, 15% as fuel, and 10% as a combustion accelerator, yielding residues including , , and that are highly hygroscopic and corrosive when moistened. In contrast, substitutes like Pyrodex reduce levels and incorporate as a secondary oxidizer, alongside , synthetic fuels such as and dicyandiamide, and for flowability, resulting in residues that are less moisture-attracting but still require thorough cleaning to prevent barrel damage. Other substitutes, such as Triple Seven, eliminate sulfur entirely—replacing it with compounds like 3-nitrobenzoic acid—and rely more heavily on with proprietary synthetic additives, producing a cleaner, hotter with reduced sulfidic residues and lower corrosion potential compared to black powder's sulfate-forming reactions. These formulations are proprietary and vary, but fundamentally shift from black powder's natural, empirical ratio-based mixture to optimized synthetic blends that alter reaction kinetics: perchlorate-based substitutes generate higher initial pressures and velocities per volume equivalent, while sulfurless variants emphasize reduced through altered gas evolution, such as decreased . The shift to or additive-enhanced oxidation in substitutes also affects ignition sensitivity; black powder ignites readily at lower temperatures due to sulfur's role, whereas many substitutes demand hotter primers (e.g., 209 shotshell primers) to overcome higher activation energies from synthetic components. Overall, these chemical divergences enable substitutes to deliver comparable muzzle energies (e.g., Pyrodex achieving near-equivalent velocities to black powder at 1:1 volume loads) but with distinct pressure curves and byproduct profiles, prioritizing handling and storage stability over black powder's historical simplicity.

Primary Ingredients and Reactions

Black powder substitutes commonly feature a combination of oxidizers, fuels, and additives designed to replicate the ballistic performance of traditional black powder while reducing residue and corrosion. Primary oxidizers include (KNO₃) and (KClO₄), with the latter providing higher oxygen density for more complete compared to nitrate alone. Fuels typically consist of (carbon source) and organic compounds like (C₆H₅COONa), which decompose to generate gases and heat. Some formulations incorporate (S) for ignition enhancement, though sulfur-free variants exist to minimize and odor. Additives such as dicyandiamide (DCDA) serve as rust inhibitors and modifiers. In Pyrodex, a widely used substitute, the mixture comprises approximately 8% , , , , (around 19%), and 5% dicyandiamide, with for lubrication. Triple Seven, another perchlorate-based formula, includes 10% , 10% , 30% , and 30% , omitting to produce less residue. Blackhorn 209 differs by incorporating as a primary fuel alongside , , and , functioning more like a low-smoke homogeneous . The reactions in these substitutes deviate from black powder's , where oxidizes and via 10KNO₃ + 8C + 3S → 2K₂CO₃ + 3K₂SO₄ + 6CO₂ + 5N₂. variants leverage KClO₄ decomposition: 2KClO₄ → 2KCl + 4O₂, releasing oxygen to oxidize fuels more efficiently, yielding products like CO₂, H₂O, N₂, and (KCl) residue, which is less corrosive than black powder's sulfates. contributes via oxidative breakdown to intermediates and ultimately CO₂ and water, enhancing gas volume with minimal solid byproducts. In Blackhorn 209, undergoes controlled and oxidation, supplemented by nitrate and for muzzleloading compatibility, resulting in lower due to nitrocellulose's complete . These reactions produce higher pressures and velocities at equivalent volumes to black powder, but require precise loading to avoid .

Types

Pyrodex Variants

Pyrodex is manufactured in several granular variants designed to correspond with traditional black powder granulations, allowing volumetric substitution on a 1:1 basis while providing similar velocities but with reduced weight per volume, approximately 20-30% lighter than black powder. The primary loose powder types include Pyrodex P, Pyrodex RS, and Pyrodex Select, each tailored for specific applications and barrel lengths. Pyrodex P features a fine granulation comparable to 3Fg (FFFg) black powder, making it suitable for pistols, small-bore , and percussion ignition priming where easier flow under nipples or into pans is beneficial. It is recommended for charges typically ranging from 15 to 30 grains in handguns and short-barreled . Pyrodex RS, intended for and shotguns, has a coarser granule size akin to 2Fg (FFg) black powder and is versatile across various calibers, supporting loads from 60 to 120 grains depending on barrel length and weight. It delivers consistent performance in traditional sidelock and modern inline muzzleloaders. Pyrodex Select represents an enhanced version of the RS formulation, with more uniform kernel sizes to promote even burning and improved accuracy, particularly in modern muzzleloaders using saboted projectiles or conicals; it uses the same volumetric charges as RS or FFg black powder but often yields tighter shot groups. Developed to address variability in standard Pyrodex, Select performs best in inline rifles with 24- to 28-inch barrels. In addition to loose powders, Pyrodex is offered in pre-measured pellet form for select s, such as 30-grain .44/.45 pellets for pistols and 50-grain .50 rifle pellets, which ensure precise dosing, minimize spillage, and allow faster reloading while maintaining consistency equivalent to loose charges; these are composed of compressed Pyrodex with an igniter coating for reliable ignition. Pellet variants are available in charges matching common black powder loads, like 100 or 150 grains for s.

Triple Seven and Similar Clean-Burning Formulas

Hodgdon Powder Company introduced Triple Seven in 2001 as a high-performance black powder substitute designed for muzzleloading firearms. Unlike traditional black powder or Pyrodex, which contain and produce a characteristic odor, Triple Seven is sulfur-free, resulting in reduced residue and easier cleanup using plain water. Its formulation includes and as oxidizers, along with fuels such as and 3-nitrobenzoic acid, though exact proportions remain proprietary. This composition enables a more efficient burn, generating approximately 15% higher energy than equivalent volumes of black powder or Pyrodex, which translates to increased muzzle velocities—often 50-100 feet per second greater in 50-caliber rifles with 100-grain charges behind 250-grain bullets. The propellant's granular forms, such as FFG and FFFG granulations, are suitable for rifles, shotguns, and cartridges in calibers 40 and larger, while pre-formed pellets simplify loading for inline muzzleloaders. Volumetric loading equivalence to black powder is recommended, but its higher pressure potential necessitates verifying firearm compatibility, particularly avoiding overloads in traditional sidelocks. Empirical tests confirm cleaner with minimal hygroscopicity compared to Pyrodex, reducing bore and allowing multiple shots before swabbing, though it remains mildly corrosive and requires prompt cleaning to prevent residue buildup. Disadvantages include a shorter due to potential degradation in unopened containers after 1-2 years, and inconsistent ignition with standard caps, favoring 209 primers or magnum igniters. Similar clean-burning formulas emphasize reduced fouling through alternative fuels and oxidizers. American Pioneer Powder (APP), formerly marketed as Clean Shot, relies on ascorbic acid () as the primary fuel with potassium nitrate, producing negligible residue that cleans with alone and minimal corrosion even after extended storage in the barrel. These ascorbic-based propellants, including discontinued variants like Black Mag3, offer low smoke and one-shot dirtiness in testing, though they typically yield lower velocities—about 10-20% less than Triple Seven on a volume basis—and may require adjusted charges for optimal performance. Such substitutes prioritize ease of over raw power, appealing to users seeking historical reproduction fidelity without black powder's sulfur byproducts, but their market presence remains limited due to variable availability and ignition sensitivity.

Blackhorn 209 and Specialized Propellants

Blackhorn 209 is a , non-hygroscopic black powder substitute developed for use in modern inline muzzleloaders equipped with 209 primer ignition systems and in black powder cartridge rifles. Introduced commercially around 2010, it produces significantly less and residue compared to traditional black powder, eliminating the need for swabbing between shots in most applications and reducing bore corrosion risks. Unlike granular substitutes such as Pyrodex or Triple Seven, Blackhorn 209 has a viscous, gel-like consistency that aids in consistent volumetric charging via specialized measures, with loads typically reduced by 10-15% by volume to achieve equivalent or superior muzzle velocities to those of Pyrodex while staying within pressure limits rated for 150 grains of black powder. Its formulation, centered on as the primary energetic component augmented with oxidizers like and other additives including and , enables a cleaner, more efficient burn that generates higher velocities—often 150-500 feet per second greater than comparable black powder loads in empirical tests with inline —while producing minimal smoke and no sticky residues that can interfere with accuracy or cleaning. Reliable ignition demands hotter primers, such as Federal 209A or 209M large primers, due to its slower initial optimized for sealed breech systems, which prevents misfires common with standard 209 primers in field conditions. This specialization limits its compatibility to firearms without loose powder ignition, such as traditional sidelocks, but enhances performance in regulated scenarios where multiple shots without cleaning are advantageous. Among specialized propellants, Blackhorn 209 stands out for its adaptation to black powder cartridge applications, where it delivers consistent velocities and reduced barrel leading in reproductions like the , outperforming traditional black powder in energy output per volume without exceeding SAAMI pressures. Other niche substitutes, such as discontinued formulas like Clean Shot or experimental blends incorporating proprietary stabilizers, share aims of reduced but lack Blackhorn 209's commercial availability and verified non-corrosive profile, often requiring custom loading data absent peer-reviewed ballistic studies. Empirical user reports and manufacturer load tables confirm Blackhorn 209's edge in velocity consistency across temperatures, with standard deviations under 20 fps in 100-yard groups from inline rifles charged at 110-130 grains by volume, though its higher cost—approximately $80-90 per 8-ounce bottle yielding 70-80 charges—necessitates verification against specific manuals to avoid over-pressurization.

Other and Emerging Substitutes

American Pioneer Powder (APP), produced by the American Pioneer Powder Company, is an ascorbic acid-based black powder substitute designed for muzzleloading, , and mounted shooting applications. It burns cleaner than traditional black powder, requiring only tap water for cleanup and producing minimal residue without the need for or swabbing between shots. Available in FFg and FFFg granulations as well as pre-formed sticks, APP maintains volumetric equivalence to black powder while exhibiting low corrosiveness. A premium variant, Jim Shockey's Gold, was marketed for its consistency and dependability, with 50-grain sticks suitable for .50 caliber loads; production resumed in after earlier supply disruptions. Alliant Black MZ, introduced by Alliant Powder in 2012, served as a versatile substitute compatible with muzzleloaders, cartridge rifles, and black powder cartridge replicas. It delivered higher muzzle velocities than many contemporaries—often exceeding those of Pyrodex—while claiming superior moisture resistance and virtually non-corrosive properties due to its formulation avoiding potassium nitrate. Users reported easier loading and reduced fouling, though it required specific charge adjustments for optimal performance in traditional sidelocks. Production ceased around 2017, but residual inventory persists in secondary markets. IMR White Hots, developed by IMR Powder (a Hodgdon ), represents a pelletized smokeless-based alternative optimized for .50 inline muzzleloaders ignited by 209 primers. Launched in the early , it achieves velocities over 2,300 fps with 100-grain charges, delivering up to 2,600 ft-lbs of , and burns with less residue than granular substitutes, facilitating quicker follow-up shots. Its white coloration distinguishes it visually, and empirical tests confirm consistent ignition and reduced barrel cleaning needs compared to black powder. Unlike loose powders, pre-formed 50/50-grain pellets minimize volumetric measurement errors but demand modern ignition systems for reliable . Emerging options include specialized systems like the Federal Premium FireStick charges, introduced in 2021, which integrate Triple Eight —a refined, low-fouling formula encased in primer-bearing for sealed, weather-resistant loading in select breech-plug-compatible . This enhances and precision by preventing spillage and ignition inconsistencies, though compatibility is limited to firearms. Ongoing developments prioritize cleaner and easier cleanup amid challenges for traditional propellants post-2020.

Performance Characteristics

Advantages and Empirical Data

Black powder substitutes such as Pyrodex, Triple Seven, and Blackhorn 209 provide reduced residue and compared to traditional black powder, facilitating easier maintenance and allowing for more shots before cleaning. Pyrodex generates lighter than black powder, though it retains some corrosiveness requiring prompt cleaning to prevent barrel damage. Triple Seven and Blackhorn 209 exhibit cleaner burning characteristics, producing minimal residue that supports consistent ignition across multiple rounds without intermediate swabbing. Empirical ballistic tests reveal higher muzzle velocities for several substitutes when measured by volume equivalence to black powder. In comparative loading with Goex black powder, Triple Seven and Blackhorn 209 consistently yielded velocities 150 to 500 fps greater across various charges and projectiles. For instance, Blackhorn 209 with a 300-grain achieved 1,878 fps, surpassing Triple Seven loads by approximately 200 fps in the same . Hodgdon's testing confirms Blackhorn 209 matches or exceeds other muzzleloading propellants in and accuracy at volumetric equivalents. Pyrodex offers comparable performance to black powder on a volumetric basis but weighs about 70% as much, enabling denser storage while delivering similar energy output. It burns with less than black powder, reducing visibility and during use. Unlike black powder, classified as a low explosive requiring special storage, Pyrodex is regulated as a flammable solid, simplifying handling and transport for users. These attributes contribute to operational efficiency in field conditions, though ignition sensitivity remains higher for Pyrodex, necessitating robust primers.

Disadvantages and Empirical Limitations

Black powder substitutes, while offering certain performance enhancements, exhibit several disadvantages relative to traditional black powder, including increased corrosiveness in residues and heightened sensitivity to . Pyrodex, for instance, produces that is highly hygroscopic, rapidly absorbing atmospheric and accelerating if firearms are not cleaned immediately after use, unlike the less moisture-attractive residues of black powder. This property stems from Pyrodex's synthetic composition, which includes oxidizers that leave deliquescent byproducts, necessitating more rigorous post-shooting maintenance protocols compared to black powder's simpler potassium-based residues. Empirical ballistic tests reveal that substitutes like Triple Seven generate peak pressures exceeding those of equivalent black powder loads, with rise times that can stress muzzleloaders originally proofed solely for black powder, potentially leading to damage if maximum charges are approached. For example, data from comparative loadings show Triple Seven achieving velocities 150-500 fps higher than black powder at similar volumetric equivalents, but this correlates with pressure spikes that manufacturers advise against in non-reinforced barrels. Blackhorn 209, a liquid-based , similarly demands specialized 209 magnum primers and modified breech plugs for reliable ignition, limiting its compatibility with traditional percussion or flintlock systems and introducing failure risks in suboptimal conditions like high humidity or low temperatures. Hygroscopic tendencies further limit field reliability for several substitutes; Triple Seven, lacking sulfur and charcoal, absorbs water vapor more aggressively than black powder, degrading combustion efficiency and increasing misfire rates after environmental exposure. While Blackhorn 209 resists better due to its formulation, its reliance on volumetric dispensing without precise weight calibration can yield inconsistent velocities across batches, as evidenced by shooter-reported variations of up to 100 fps in replicated loads. Overall, these empirical limitations—higher pressures, ignition dependencies, and residue management demands—underscore that substitutes are not drop-in replacements, requiring user adjustments and potentially compromising safety in unregulated applications.

Uses and Applications

Muzzleloading Firearms

Black powder substitutes such as Pyrodex, Triple Seven, and Blackhorn 209 are extensively used in modern inline muzzleloading rifles, pistols, and shotguns, particularly for during specialized seasons and precision target shooting. These propellants are loaded from the muzzle using volumetric measures, with Pyrodex designed for direct volume-for-volume equivalence to black powder charges to achieve comparable velocities and pressures while producing less . For example, two 50-grain Pyrodex pellets behind a 200-grain in a 26-inch barrel yield muzzle velocities of approximately 1,765 feet per second. Triple Seven provides higher energy output, requiring about 15% less volume than black powder for equivalent performance, which results in reduced residue accumulation and velocities such as 1,774 feet per second with three 50-grain pellets and a 200-grain . This cleaner burning facilitates multiple consecutive shots without barrel swabbing, enhancing practicality in field conditions. Pelletized forms of both Pyrodex and Triple Seven further streamline loading by pre-measuring charges, minimizing in time-sensitive scenarios. Blackhorn 209, dispensed as a liquid-like , excels in muzzleloaders equipped with 209 primer systems, delivering elevated velocities—ranging from 1,727 feet per second with 80 units behind a 200-grain to 2,359 feet per second with 120 units and a 175-grain —and virtually no , allowing sustained fire without cleaning interruptions. Compared to black powder, substitutes like Blackhorn 209 and Triple Seven consistently produce 150 to 500 feet per second higher velocities in equivalent volumetric loads. However, these substitutes generate higher pressures unsuitable for traditional flintlock or sidelock muzzleloaders proofed solely for black powder, restricting their application to contemporary inline designs. Ignition demands, such as #209 shotgun primers for Blackhorn 209, further limit compatibility. Post-use cleaning remains critical: while fouling is minimized, Pyrodex residues are hygroscopic and corrosive if moisture is absorbed, necessitating prompt water-based flushing followed by drying and lubrication, unlike the simpler potassium-based residues of black powder. Triple Seven and Blackhorn 209 residues dissolve readily in water, simplifying maintenance.

Cartridge and Historical Reproductions

Black powder substitutes such as Pyrodex and Triple Seven have been adapted for use in cartridge firearms, including reproductions of 19th-century designs like single-action revolvers and black powder cartridge rifles (BPCR), where they replicate traditional black powder ballistics while reducing residue buildup. These propellants are loaded into brass or paper cartridges, often for competitive shooting disciplines like cowboy action shooting (CAS), which mandates black powder or approved equivalents with minimum charges of 25 grains for rifles and pistols. In historical reproductions, substitutes enable extended shooting sessions without frequent cleaning, though pressures and velocities can exceed those of genuine black powder, necessitating adherence to published load data. Pyrodex, developed by Hodgdon Powder Company in 1975, supports cartridge reloading in calibers such as , , and , where users report reliable ignition and accuracy comparable to black powder when measured volumetrically. For instance, in BPCR applications and CAS events, Pyrodex P or RS variants are loaded into metallic cases with cast bullets, yielding velocities around 1,200-1,400 fps in .45-70 loads, though fouling remains higher than smokeless powders but lower than black powder. Manufacturers emphasize volumetric equivalence—e.g., 70 grains by volume of Pyrodex equating to 70 grains of FFG black powder—to avoid , as weight-based measurement can lead to dangerous loads due to Pyrodex's lower . Hodgdon's Triple Seven FFG, a granular substitute, is explicitly formulated for cartridge use in .40 and larger, as well as shotguns, with published reloading for single-action army (SAA) reproductions in .44-40 and .45 Colt, producing muzzle velocities up to 1,300 fps with 255-grain bullets. In CAS and historical reenactments, it facilitates loads, as demonstrated in tests with .58-caliber minie balls, offering cleaner burning than Pyrodex but requiring hotter primers due to its higher ignition temperature of approximately 600°F compared to black powder's 500°F. Empirical comparisons in BPCR matches show Triple Seven achieving tighter groups at 200 yards than some black powders, though it generates more heat and is costlier at roughly $40 per pound versus $30 for black powder. Other substitutes like American Pioneer Powder appear in CAS for low-fouling loads in reproduction revolvers, but Blackhorn 209 is generally unsuitable for cartridges due to its fluid-like consistency and duplex formulation, which violates rules in powder-only categories. Safety protocols for these applications include using black powder-rated firearms or proofed reproductions, as substitutes can produce peak pressures up to 20% higher than black powder equivalents, risking damage in antique arms not rated for modern loads. Overall, while substitutes enhance practicality in historical reproductions by minimizing maintenance, traditionalists in precision BPCR often prefer genuine black powder for its consistent low-pressure profile around 25,000 psi.

Non-Firearm Applications

Black powder substitutes, such as Pyrodex and Triple Seven, find limited utility beyond firearms due to their formulation optimized for confined combustion in muzzleloading applications, which differs from the rapid, unconfined required in or rocketry. In model rocketry, Pyrodex has been experimentally employed as an ejection charge for deployment, where hobbyists report partial success by using Pyrodex P as a volumetric substitute for fine black (4F grade) after ground testing to ensure adequate generation, though ignition reliability demands priming with black powder or careful confinement. However, forum tests indicate Pyrodex often underperforms unconfined, failing to produce sufficient ejection force even at double the charge weight compared to black , rendering it unreliable for standard rocket motor applications. Pyrotechnic uses, including fireworks lift charges or bursting compositions, are not viable with these substitutes, as their burn rates and energy release do not replicate black powder's characteristics, leading to inconsistent performance or failure in open-air ignition scenarios. Manufacturers like Hodgdon explicitly design products such as Triple Seven for muzzleloading, with no documented endorsement for pyrotechnic or applications, and empirical tests confirm incompatibility due to higher ignition temperatures and altered residue profiles. No verified industrial applications, such as or quarrying, exist for these sporting propellants, which lack the bulk stability and regulatory approvals for blasting operations typically reserved for traditional black powder or commercial . Experimental adaptations remain niche and unstandardized, often requiring user modifications that compromise safety margins established for use.

Measurement and Loading Practices

Volumetric Equivalency

Volumetric equivalency refers to the practice of measuring black powder substitutes using the same volume-based charges as traditional black powder, typically with adjustable powder measures calibrated in "grains" by volume rather than weight. This approach stems from the historical loading methods for muzzleloaders, where black powder's allows consistent volumetric dispensing that correlates to safe pressure levels. Substitutes are engineered to approximate this, but variations in composition, , and burn characteristics necessitate adherence to manufacturer-specific guidelines to avoid over- or under-pressurization. Pyrodex, produced by Hodgdon Powder Company, is formulated as a direct volumetric replacement for black powder across its grades (e.g., P for FFFg equivalent, RS for FFg). A given of Pyrodex—such as 100 grains measured in a black powder measure—yields ballistic performance comparable to the same of black powder, including similar muzzle velocities and chamber pressures in tested loads, though Pyrodex's lower results in it weighing about 80% as much as an equal of black powder. Hodgdon's loading data specifies all Pyrodex charges by only, with maximum loads mirroring black powder limits (e.g., 150 grains by in inline rifles). Hodgdon's Triple Seven (777) similarly employs volumetric loading, with loose powder or pellets dispensed using black powder measures for 1:1 volume equivalency to black powder. However, its higher energy content—derived from oxidizer—produces elevated velocities (often 50-100 fps higher) and pressures at equivalent volumes, making it unsuitable for direct substitution in or fragile arms without reduction. For performance parity, empirical comparisons indicate roughly 85 grains by volume of Triple Seven approximates 100 grains by volume of black powder or Pyrodex, though official manuals advise starting with published volumetric data and chronographing results. Blackhorn 209, a liquid-based from Hodgdon (formerly Western Powders), is also measured volumetrically with black powder measures or graduated charge tubes, treating 100 grains by as equivalent to 100 grains by of black powder for loading purposes. Its is lower (approximately 70 grains by weight for 100 grains by ), yet it delivers 15-20% greater , resulting in higher velocities and flatter trajectories at the same —e.g., exceeding black powder performance in modern inline muzzleloaders rated for 150 grains by . Maximum recommended loads cap at 150 grains by to stay within SAAMI-equivalent pressures, with volumetric units explicitly not interchangeable with weight due to lot variability. Cross-substitute equivalencies require caution, as direct volume-for-volume swaps can alter pressures; for example, 100 grains by volume of Blackhorn 209 may equate to 115-120 grains by volume of for similar , based on user data, though manufacturers emphasize testing with specific firearms. Always prioritize official reloading manuals over approximations, as volumetric methods assume standard measure calibration and do not account for compression or barrel specifics.

Safety Protocols in Use

Users of black powder substitutes, such as Pyrodex and Triple Seven, adhere to protocols emphasizing their classification as flammable solids requiring handling akin to traditional black powder but with product-specific adjustments for composition and performance. Storage mandates original, sealed containers in cool, dry environments remote from heat sources, open flames, sparks, or combustibles to mitigate ignition risks and moisture absorption, which can degrade hygroscopic formulations like Pyrodex. Spilled powder must be manually swept rather than vacuumed to avoid static sparks, and containers should remain inaccessible to children. Loading protocols prioritize volumetric measurement using black powder equivalents rather than weight, as substitutes like Triple Seven deliver approximately 15% higher , necessitating load reductions to prevent . Firearms must be verified unloaded with engaged per manufacturer instructions before introducing powder or pellets; projectiles are seated firmly against the charge to eliminate , which could cause inconsistent ignition or barrel obstructions. Pellets, such as Pyrodex 50/50 or Triple Seven 50 gr., are loaded igniter-end first where specified, limited to maximum quantities (e.g., two Pyrodex or Triple Seven pellets per charge), and never combined with granular powder or other brands. Smokeless powders are explicitly prohibited as substitutes due to incompatible burn characteristics and pressure spikes. Ignition protocols specify primer selection for reliable : Pyrodex accommodates standard percussion or caps alongside 209 shotshell primers, while Triple Seven and White Hots require 209 primers exclusively for inline muzzleloaders. , including eye and ear protection, is standard, with operations conducted in well-ventilated areas to disperse potential fumes. s undergo prompt post-use inspection and cleaning—Pyrodex residues demand thorough removal to counter corrosivity, often with hot soapy water or dedicated solvents, whereas Triple Seven permits simple water flushing due to its non-hygroscopic, low-residue profile. Loaded s are never left unattended, and all protocols derive from empirical testing to ensure pressures remain within historical tolerances.

Safety and Handling

Stability and Ignition Properties

Black powder substitutes exhibit higher ignition temperatures than traditional black powder, rendering them less sensitive to incidental sparks, friction, or low-energy ignition sources. Pyrodex granular powder has an auto-ignition temperature of 393°C (740°F), compared to black powder's typical range of 260–320°C (500–608°F). Triple Seven powder requires an ignition temperature of approximately 399°C (750°F), further emphasizing the need for robust primers like #209 shotshell primers in modern inline muzzleloaders to ensure reliable . This reduced sensitivity enhances handling but can lead to misfires in traditional or systems designed for black powder's lower ignition threshold. In terms of chemical and stability, substitutes are formulated to resist corrosion and residue buildup better than black powder, though they remain flammable and capable of under confinement. Pyrodex, for example, is classified as extremely flammable per its , with potential for if confined, but it demonstrates thermal stability up to its ignition point without spontaneous under normal storage conditions. Triple Seven offers improved resistance to degradation from minor moisture exposure compared to Pyrodex, though both are susceptible to performance loss if not sealed properly. Moisture sensitivity poses a primary stability challenge for these propellants, as absorption can alter burn rates and reduce potency. Triple Seven is notably hygroscopic, attracting atmospheric water that may degrade its ballistic performance over time, particularly in humid environments. Pyrodex similarly degrades with prolonged moisture exposure, leading to inconsistent ignition or hangfires, though proper storage in airtight containers extends its usable shelf life to several years without measurable loss in efficacy. Unlike black powder, which can often be salvaged by drying after moisture uptake, substitutes may suffer irreversible chemical changes, underscoring the importance of dry, controlled storage to maintain stability.

Storage and Environmental Factors

Black powder substitutes such as Pyrodex and Triple Seven must be stored in their original containers in cool, dry locations away from direct sunlight, ignition sources, heat, sparks, open flames, and static electricity to prevent degradation or accidental ignition. Safety data sheets from manufacturer Hodgdon Powder Company specify maintaining temperatures below 150°F (65.6°C) and avoiding proximity to reactive materials or conditions that could induce shock, impact, or friction. These propellants exhibit hygroscopic properties, with Triple Seven particularly prone to absorbing atmospheric , which can compromise ignition reliability and ballistic performance over time. Pyrodex similarly demands stringent moisture control, as even minor exposure during storage can lead to clumping or reduced compared to traditional , which tolerates more forgivingly in some cases. High relative environments, such as above 75%, exacerbate absorption risks, potentially reaching 1-1.5% content and necessitating desiccants or sealed storage to mitigate. Temperature fluctuations influence stability, with excessive accelerating chemical breakdown and elevated amplifying risks in nearby metal components, as observed in user tests with exposed Triple Seven containers. Prolonged exposure to adverse conditions can result in misfires or inconsistent velocities, underscoring the need for climate-controlled storage in humid or variable regions.

Regulatory Framework

United States Regulations

Black powder substitutes, such as Pyrodex and Triple Seven, are classified federally as propellants rather than low explosives, distinguishing them from traditional black powder (, , and ). This classification exempts them from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) regulations under 27 CFR Part 555 that govern low explosives, including licensing requirements for manufacture, importation, distribution, and storage of black powder. Traditional black powder, defined as a deflagrating low , requires an ATF explosives or permit for commercial activities, though individuals may possess up to 50 pounds without one if intended solely for sporting, recreational, or cultural uses in or devices, per 18 U.S.C. § 845(a)(5) and 27 CFR § 555.141(b). Substitutes like Pyrodex (a sodium-based ) and Triple Seven (potassium perchlorate-based) do not qualify under this exemption because they are chemically distinct and categorized by the (DOT) as smokeless or specialty propellants, subject only to hazmat shipping rules (e.g., UN as 1.4C for limited quantities) rather than ATF explosive storage magazines. No federal quantity limits analogous to black powder's 50-pound threshold apply to substitutes for personal possession, as they fall outside the Federal Explosives Law (18 U.S.C. Chapter 40). Prohibited persons, such as felons under 18 U.S.C. § 922(g), may legally possess black powder up to 50 pounds for sporting purposes but face restrictions on generally; substitutes' status avoids explosive prohibitions, though federal law bars them from (defined as fixed cartridges or shells, excluding loose powder). State and local laws may impose additional storage, purchase age (typically 18+ or 21+), or quantity rules, and some jurisdictions treat substitutes identically to black powder for transport (e.g., separate from firearms). In muzzleloading contexts, federal firearm definitions exclude using black powder or substitutes from regulation under the Gun Control Act (18 U.S.C. § 921(a)(16)), provided they load from the muzzle and cannot use fixed . Hunting regulations in many states permit substitutes during muzzleloader seasons equivalent to black powder by volume, but some restrict to "true" black powder only, emphasizing volumetric loading to avoid overpressure risks.

United Kingdom and European Rules

In the , traditional black powder has long required an Acquire and Keep Explosives Certificate for purchase, possession, and storage up to specified quantities, governed by the Explosives Act 1875 and the Manufacture and Storage of Explosives Regulations 2005 (MSER). Black powder substitutes, such as Pyrodex and Triple Seven, were previously exempt from this requirement and treated similarly to smokeless powders, necessitating only a (FAC/SGC) for associated muzzleloading firearms classified as Section 1 under the Firearms Act 1968. However, in 2024, Pyrodex was reclassified from UN0161 to UN0499 and UN0501 by regulatory authorities, mandating an Explosives Certificate for acquisition and possession, aligning it with black powder controls; pre-reclassification stock in original UN0161 packaging may retain exemptions, though enforcement varies by police force. Storage must comply with MSER quantity limits (e.g., up to 75 kg without a magazine license for certain low-hazard explosives) and separation from igniters. Muzzleloading firearms using these substitutes require an FAC for modern replicas, while genuine antiques pre-1939 may qualify for Section 58(2) exemption without certification if held as curiosities, though live firing demands compliance with propellant rules. Retailers like Henry Krank confirm that post-reclassification, substitutes demand explosives certification for direct-to-consumer sales, with transport restricted to licensed quantities. Across the , regulations for black powder substitutes fall under national implementations of Directive 2014/28/EU on explosives for civil uses, which harmonizes safety and market placement for propellants but delegates possession and acquisition to member states' firearms and explosives laws. Substitutes like Pyrodex are typically categorized as low explosives (e.g., UN0499, class 1.3C), requiring permits for purchase and storage, distinct from black powder's treatment as a pyrotechnic in some contexts. REACH regulations (EC 1907/2006) further restrict imports or formulations containing certain perchlorates or metals due to concerns, impacting availability of U.S.-origin substitutes. In , substitutes are classified as hazardous goods under the Explosives Act (SprengG), prohibiting their use in competitions while mandating licenses for acquisition; black powder replicas pre-1871 models are unregulated for possession over age 18, but propellants require §27 permits. In , black powder firearms are Category D (freely acquirable over age 18), but substitutes as propellants demand authorization under Decree 2013-180, with storage limits enforced by prefectural decrees; EU Firearms Directive 91/477/EU (as amended) influences cross-border transport. Variations persist, with stricter controls in nations like the emphasizing deactivation for replicas, underscoring the need for country-specific verification.

International Perspectives and Restrictions

In , black powder substitutes classified as hazard category PE 1, such as Pyrodex or equivalents, may be imported, exported, or transported without a permit up to 8 kg total in containers of 500 g or less, distinguishing them from smokeless powders that face stricter thresholds. This regulatory leniency reflects their formulation as low explosives akin to black powder, facilitating use in muzzleloading firearms for and without the full explosives certification required for higher-hazard propellants. Australia regulates black powder substitutes as explosives under state-specific licensing regimes, necessitating authorization from police licensing services for possession, storage, and use. Products like Pyrodex are authorized in jurisdictions such as , appearing on approved lists for commercial explosives, but imports require compliance with permissions to prevent unregulated entry. In shooting competitions, substitutes are permitted for informal events but often restricted in national championships favoring pure black powder, underscoring a preference for traditional propellants in formal contexts despite substitutes' availability for general muzzleloading. New Zealand authorizes black powder substitutes under the Explosives Authorisation Order, treating them similarly to black powder with limits on possession up to 15 kg for smokeless and powders combined, subject to safety packaging and declaration for air . This framework supports their use in sporting , classified as UN0014 1.4S, allowing declared but prohibiting undeclared carriage. In , black powder substitutes face import challenges, leading to local production of alternatives due to restricted black powder availability, with regulations mandating sealed containers and net mass limits per package under the Explosives Regulations. Muzzleloading firearms themselves require licensing post-regulatory changes excluding traditional exemptions, aligning substitutes with controlled explosives oversight to mitigate risks in a context of stringent firearms controls. Globally, black powder substitutes often benefit from classification as modern propellants rather than archaic black powder, enabling storage under less onerous rules in jurisdictions without specific bans, though consistently demands compliance with international explosives shipping standards like those from the UN or ICAO to address ignition hazards. In regions like parts of and , adoption remains limited by supply chains and local manufacturing preferences for traditional black powder, with restrictions emphasizing licensed possession to curb misuse in unregulated markets.

References

  1. https://hodgdonpowderco.com/about-us/
  2. https://www.powdervalley.com/product-category/muzzleloading/black-powder-substitutes/
  3. https://www.rockislandauction.com/riac-blog/black-powder-substitute
  4. https://www.hunter-ed.com/iowa/studyGuide/Powders-for-Muzzleloaders/20101302_97646/
  5. https://thebiggamehuntingblog.com/blackhorn-209-vs-777-vs-goex-black-powder/
  6. https://bulletin.accurateshooter.com/2012/11/origins-of-pyrodex-black-powder-substitute/
  7. https://www.britannica.com/technology/gunpowder
  8. https://historicfloridamilitia.files.wordpress.com/2012/03/history-of-black-powder.pdf
  9. https://americanhandgunner.com/discover/handloading/pyrodex-p-powder/
  10. https://www.starlinebrass.com/articles/black-powder-vs-smokeless-powder-comparing-gunpowder-types/
  11. http://firearmshistory.blogspot.com/2016/10/black-powder-substitutes-i.html
  12. https://chuckhawks.com/muzzleloading_babylon.htm
  13. https://www.americanrifleman.org/content/muzzleloader-propellants-what-you-need-to-know/
  14. https://www.americanrifleman.org/content/hodgdon-the-inside-story/
  15. https://www.handloadermagazine.com/propellant-profiles-24
  16. https://pmc.ncbi.nlm.nih.gov/articles/PMC6614743/
  17. https://pubmed.ncbi.nlm.nih.gov/20735702/
  18. https://www.muzzleloadingforum.com/threads/black-vs-pyrodex-vs-triple-se7en.60420/
  19. https://www.quora.com/Is-Pyrodex-the-same-as-black-powder
  20. https://hodgdonpowderco.com/wp-content/uploads/2023/04/2023-pyrodex-sds-us-012423-1.pdf
  21. https://hodgdonpowderco.com/wp-content/uploads/2023/04/2023-triple-seven-sds-us-012423-1.pdf
  22. https://www.brownells.com/userdocs/MSDS/749-014-799_HODGDON%2520PYRODEX%2520PISTOL%2520POWDER%2520-%2520407_default.pdf
  23. https://americanlongrifles.org/forum/index.php?topic=31846.25
  24. https://www.thefirearmblog.com/blog/2010/06/11/is-blackhorn-209-really-a-smokeless-powder/
  25. https://www.go2gbo.com/threads/blackhorn-209-smokeless-or-not.113177/
  26. https://patents.google.com/patent/US20120138200A1/en
  27. https://patents.google.com/patent/US8257522B2/en
  28. https://hodgdonreloading.com/wp-content/uploads/2023/12/MZ-MANUAL-23.pdf
  29. http://www.bondbywater.co.uk/doc_uploads/product%2520info%2520docs/Hodgdon/The%2520difference%2520between%2520black%2520powder%2520and%2520Pyrodex.pdf
  30. https://www.shootersreport.com/muzzleloading/Pyrodex-Granular-Muzzleloader-Propellant.htm
  31. https://muzzle-loaders.com/products/pyrodex-rs-powder-loose-black-powder-substitute-1-lb-pyrodex-rs
  32. https://www.huntingnet.com/forum/black-powder/339216-pyrodex-rs-vs-pyrodex-select.html
  33. https://muzzle-loaders.com/products/pyrodex-select-powder-loose-black-powder-substitute-1-lb-pyrodex-select
  34. https://shop.hodgdon.com/brand/pyrodex/
  35. https://www.midwayusa.com/product/1013083410
  36. https://chuckhawks.com/triple_seven.htm
  37. https://shop.hodgdon.com/triple-seven-ffg-granular-powder/
  38. https://www.huntingpa.com/threads/pyrodex-pellets-vs-triple-7.221969/
  39. http://firearmshistory.blogspot.com/2016/10/black-powder-substitutes-ii.html
  40. https://www.mikebeliveau.com/magazine-archive/smoothbore-shootout-8sfyb-35yll
  41. https://chuckhawks.com/blackpowder_roundup_2010.htm
  42. https://pubmed.ncbi.nlm.nih.gov/19732276/
  43. https://www.muzzleloadingforum.com/threads/what-is-the-cleanest-burning-black-powder.158376/post-2252684
  44. https://hodgdonpowderco.com/blackhorn-209/
  45. https://hodgdonreloading.com/wp-content/uploads/2023/12/MZ-MANUAL-23-4-copy2.pdf
  46. https://hodgdonpowderco.com/wp-content/uploads/2023/04/2022-blackhorn-209-sds.pdf
  47. https://shop.hodgdon.com/blackhorn-209/
  48. https://americanpioneerpowder.com/
  49. https://www.midwayusa.com/product/1013076939
  50. https://www.finfeatherfur.com/american-pioneer-powder-2f/
  51. https://www.tndeer.com/threads/american-pioneer-powder-is-back-in-business-available.393759/
  52. https://www.midwayusa.com/product/1013078122
  53. https://www.americanrifleman.org/content/alliant-black-mz/
  54. https://www.alliantpowder.com/products/powder/blackmz.aspx
  55. https://forums.sassnet.com/index.php?/topic/385300-alliant-black-mz-black-powder-substitute/
  56. https://www.modernmuzzleloader.com/threads/anyone-tried-alliant-powder-black-mz-black-powder-substitut.23503/
  57. https://www.americanhunter.org/content/how-to-choose-the-perfect-powder-for-your-muzzleloader/
  58. https://muzzle-loaders.com/products/imr-white-hots-pellets-muzzleloader-black-powder-substitute-72-pellets
  59. https://www.gamemastersoutdoors.com/imr-white-hots-pellets-muzzleloader-black-powder-substitute-72-pellets-imr600/
  60. https://www.midwayusa.com/product/1013084310
  61. https://www.dunhamssports.com/hodgdon-imr-white-hots-black-powder-substitute-50-caliber-pre-formed-charges-W0000080710.html
  62. https://www.grafs.com/powders-primers-black-powder-substitutes-pellets
  63. https://www.ilovemuzzleloading.com/blog/muzzleloading-news-august-2025
  64. https://www.reedstargetshootingclub.co.uk/club-blogs/black-powder-vs-pyrodex
  65. https://rokslide.com/forums/threads/blackhorn-209-vs-other-powders.324318/
  66. https://www.gun-tests.com/accessories/muzzleloading-propellants-blackhorn-209-earns-an-a-3/
  67. https://www.oodmag.com/community/showthread.php?94750-Blackhorn-209-vs-777-vs-Goex-Black-Powder
  68. https://www.arkansashunting.net/threads/muzzleloading-powder-observation-triple-seven-five-star-vs-blackhorn-209.252360/
  69. https://forums.sassnet.com/index.php?/topic/263401-pyrodex-vs-bp/
  70. https://www.henrykrank.com/black-powder-or-pyrodex-and-other-smokeless-propellants/
  71. https://www.quora.com/Is-Pyrodex-or-Black-Powder-better-for-shooting-muzzle-loaders
  72. https://www.modernmuzzleloader.com/threads/black-powder-vs-pyrodex.54973/
  73. https://www.reddit.com/r/blackpowder/comments/j5jrgl/pyrodex_more_corrosive/
  74. https://www.in-depthoutdoors.com/community/forums/topic/blackhorn-muzzleloader-powder-conversion-table/
  75. https://www.shootersreport.com/reloading/Reload-Triple7andPyrodex.htm
  76. https://wowsinc.org/shooting-categories/
  77. https://www.coltforum.com/threads/triple-7-ffg-in-cartridges.410144/
  78. https://www.marlinowners.com/threads/using-pyrodex-in-center-fire-rifles.637222/
  79. https://www.coltforum.com/threads/realoading-using-pyrodex-instead-of-black-powder.62127/
  80. https://forums.sassnet.com/index.php?/topic/289889-black-powder-and-substitutes/
  81. https://www.youtube.com/watch?v=LvBGkABTAmo
  82. https://www.muzzleloadingforum.com/threads/triple-seven.64244/
  83. https://researchpress.uk/marksmanship/bpcr/bpcr-guide-powder-selection/
  84. https://thefiringline.com/forums/showthread.php?t=454761
  85. https://www.reddit.com/r/canadaguns/comments/11nc7iz/black_powder_cartridges_in_smokeless_powder/
  86. https://forum.castbulletassoc.org/thread/671-black-powder-substitutes/
  87. https://www.skylighter.com/blogs/how-to-make-fireworks/make-black-powder-quick-and-easy
  88. https://www.space-rockets.com/pyrodex/
  89. https://www.rocketryforum.com/threads/black-powder-vs-pyrodex.125156/
  90. https://muzzle-loaders.com/products/hodgdon-triple-seven-loose-powder-ffg
  91. https://shop.hodgdon.com/pyrodex-p-pistol-powder/
  92. https://hodgdonpowderco.com/wp-content/uploads/2024/12/MZ-DATA-BH209.pdf
  93. https://hodgdonpowderco.com/wp-content/uploads/2023/06/2023-Muzzleloader-WARNINGS-.pdf
  94. https://hodgdonpowderco.com/wp-content/uploads/2023/05/2023-General-Warnings-Rev-05-15-2023-52.pdf
  95. https://www.quora.com/What-is-the-self-ignition-temperature-of-black-powder-or-gun-powder
  96. https://www.thehighroad.org/index.php?threads/triple-seven-troubles.430914/
  97. http://blogs.nwic.edu/rocketteam/files/2011/09/Pyrodex.pdf
  98. https://www.muzzleloadingforum.com/threads/pyrodex-shelf-life.170252/
  99. https://www.quora.com/How-long-is-Pyrodex-good-for
  100. https://www.natchezss.com/blog/hodgdon-reloading-powder-types-tips-mistakes-to-avoid
  101. https://www.muzzleloadingforum.com/threads/pyrodex-shelf-life-information.27752/
  102. https://patents.google.com/patent/US7459043B2/en
  103. https://www.muzzleloadingforum.com/threads/the-triple-seven-rust-challenge.147133/
  104. https://www.rocketryforum.com/threads/triple-7-and-pyrodex.102989/
  105. https://www.muzzleloadingforum.com/threads/real-black-powder.131014/
  106. https://www.atf.gov/explosives/tools-services-explosives-industry/explosive-products-and-devices/black-powder
  107. https://www.atf.gov/explosives/qa/black-powder-subject-regulation-under-federal-explosives-laws
  108. https://www.atf.gov/files/publications/download/p/atf-p-5400-7.pdf
  109. https://www.atf.gov/resource-center/docs/0501-firearms-top-10-qaspdf/download
  110. https://www.muzzleloadingforum.com/threads/pyrodex-vs-black-power-law.168749/
  111. https://regulations.atf.gov/478-11/
  112. https://muzzle-loaders.com/blogs/muzzleloader-regulations/muzzleloader-regulations-by-state
  113. https://www.gov.uk/government/publications/firearms-law-guidance-to-the-police-2012/guide-on-firearms-licensing-law-accessible-version
  114. https://www.henrykrank.com/ordering-powder-what-licences-you-need-and-why/
  115. https://basc.org.uk/information-for-users-of-pyrodex/
  116. https://reloading.org.uk/explosiveguide.pdf
  117. https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014L0028
  118. https://www.lhs-germany.de/en/powder/black-powder-substitute/
  119. https://www.wlcastleman.com/equip/shoot/t223/reach.htm
  120. https://www.reddit.com/r/blackpowder/comments/1gvnbtk/how_many_countries_have_allow_possesing_black/
  121. https://www.fusil-calais.com/en/content/131-arme-poudre-noire-legislation-et-chargement
  122. https://www.all4shooters.com/en/shooting/law/eu-gun-ban-face-press-release/
  123. https://natural-resources.canada.ca/minerals-mining/explosives-fireworks-ammunition/ammunition-propellant-powders/importing-exporting-transporting-ammunition-propellant-powders
  124. https://worksafe.wa.gov.au/black-powder-propellant-powder-and-ammunition
  125. https://www.safework.nsw.gov.au/__data/assets/pdf_file/0013/50080/Authorised-list-of-explosives-and-categories-of-prohibited-explosives-in-NSW.pdf
  126. https://enoughgun.com/forum/viewtopic.php?f=81&t=15121
  127. https://www.legislation.govt.nz/regulation/public/2001/0137/latest/whole.html
  128. https://epa.govt.nz/assets/FileAPI/hsno-ar/HRC08007/74c135a5e6/HRC08007-HRC08007-Decision-AMENDED.pdf
  129. https://www.gov.za/sites/default/files/gcis_document/201409/278200.pdf
  130. https://www.muzzleloadingforum.com/threads/south-african-muzzleloading.121755/
  131. https://military-history.fandom.com/wiki/Black_powder_substitute
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