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Sako TRG
The Sako TRG (short for Finnish: "Tarkkuuskivääri Riihimäki G-sarja", "Riihimäki Precision Rifle G-series") is a bolt-action sniper rifle line designed and manufactured by Finnish firearms manufacturer SAKO of Riihimäki. It is the successor to the SAKO TR-6 target rifle, and thus the letter G within the rifle's name is meant to represent number 7 (since G is the seventh letter in alphabetical order).
The TRG-21 and TRG-22 (A1) are designed to fire standard .308 Winchester (7.62×51mm NATO) sized cartridges, while the TRG-41 and TRG-42 (A1) are designed to fire more powerful and dimensionally larger .300 Winchester Magnum (7.62×67mm) and .338 Lapua Magnum (8.6×70mm) cartridges. They are available with olive drab green, desert tan/coyote brown, dark earth or black stocks, and are also available with a folding stock. The TRG-62 A1 was added to the product range as the third and largest iteration, designed to fire the even more powerful and dimensionally larger .375 CheyTac (9.5×77mm) cartridge.
The sniper rifles are normally fitted with muzzle brakes to reduce recoil, jump and flash. The Sako factory TRG muzzle brakes vent sideways and are detachable. Generally TRGs are outfitted with a Zeiss or Schmidt & Bender PM II telescopic sight with fixed power of magnification or with variable magnification. Variable telescopic sights can be used if the operator wants more flexibility to shoot at varying ranges, or when a wide field of view is required.
In October 2011, Sako introduced the TRG M10 Sniper Weapon System. It was designed as a user configurable multi calibre modular system responding to evolving market demands and does not share its receiver and other technical features with the rest of the (single caliber) TRG line.
Even though the TRG-21 obtained its origins from the successful Sako TR-6 target rifle and 1984–1986 development work for the hardly produced Valmet Sniper M86 rifle by the former Finnish state firearms company Valmet which merged with Sako, the 4.7 kg (10 lb 6 oz) TRG-21 was designed as a result of a thorough study of sniper requirements.
In 1989 Sako Ltd. (Riihimäki, Finland) introduced the TRG-21 precision rifle as a sniper rifle model chambered in .308 Winchester. With the introduction of the TRG bolt-action, Sako moved away from the modified two-lug Mauser bolt-actions, favoured during the past, to an action with a symmetrical three-lug bolt of 19 mm (0.75 in) diameter, displaying a locking surface of 75 mm2 (0.116 in2). The TRG-21 action was designed for a maximum cartridge length of 75 mm (2.95 in). The evolution of this design continues to the present and can be found in Sako's hunting rifle offerings, the Sako 75 and the Sako 85. Subsequently, a second precision/sniper rifle with a 20 mm (0.79 in) longer scaled up magnum action emerged as the TRG-41 in order to take advantage of the .338 Lapua Magnum cartridge.
A more hunting oriented variation of the TRG was introduced in 1992 as the TRG-S M995 and TRG-S M995 Magnum, which both use the same scaled up magnum action and bolt (different bolt handle) as the TRG-41 with the exception that the receiver is open at the top with an integral Sako-type wedged dovetail rail rather than possessing a cartridge ejection port on the right side and a parallel 17 mm (0.67 in) integral dovetail rail as found with the TRG-41. The TRG-S M995 (Magnum) was produced until 2003 and chambered in eight standard chamberings and fourteen magnum chamberings, including .338 Lapua Magnum. All TRG-S M995 rifles utilized the same stock and receiver designed for a maximum cartridge length of 95 mm (3.74 in). Four different sized detachable box magazines and three different bolt bodies were used to accommodate the dimensionally different rifle cartridges offered. A carbine variant of the TRG-S was also produced that according to Sako literature featured a 520 mm (20.5 in) long barrel. However, M995 carbines imported to the United States featured a 495 mm (19.5 in) barrel and were chambered in .375 H&H Magnum only. Sako planned to produce a short action TRG-S M975 designed for a maximum cartridge length of 75 mm (2.95 in), that would have been based on the TRG-21. In the end Sako abandoned this plan and only a handful of M975 prototypes were produced.
To make the TRG system more suitable for military use, Sako upgraded and improved the TRG-21/41 design in the late 1990s. Some TRG accessories like the muzzle brake and bipod (that lets the rifle swivel or "hang" near its bore axis offering a more stable shooting position with large and heavy aiming optics mounted) were also improved. This resulted in the TRG-22/42 rifle system introduced in 1999.
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Sako TRG
The Sako TRG (short for Finnish: "Tarkkuuskivääri Riihimäki G-sarja", "Riihimäki Precision Rifle G-series") is a bolt-action sniper rifle line designed and manufactured by Finnish firearms manufacturer SAKO of Riihimäki. It is the successor to the SAKO TR-6 target rifle, and thus the letter G within the rifle's name is meant to represent number 7 (since G is the seventh letter in alphabetical order).
The TRG-21 and TRG-22 (A1) are designed to fire standard .308 Winchester (7.62×51mm NATO) sized cartridges, while the TRG-41 and TRG-42 (A1) are designed to fire more powerful and dimensionally larger .300 Winchester Magnum (7.62×67mm) and .338 Lapua Magnum (8.6×70mm) cartridges. They are available with olive drab green, desert tan/coyote brown, dark earth or black stocks, and are also available with a folding stock. The TRG-62 A1 was added to the product range as the third and largest iteration, designed to fire the even more powerful and dimensionally larger .375 CheyTac (9.5×77mm) cartridge.
The sniper rifles are normally fitted with muzzle brakes to reduce recoil, jump and flash. The Sako factory TRG muzzle brakes vent sideways and are detachable. Generally TRGs are outfitted with a Zeiss or Schmidt & Bender PM II telescopic sight with fixed power of magnification or with variable magnification. Variable telescopic sights can be used if the operator wants more flexibility to shoot at varying ranges, or when a wide field of view is required.
In October 2011, Sako introduced the TRG M10 Sniper Weapon System. It was designed as a user configurable multi calibre modular system responding to evolving market demands and does not share its receiver and other technical features with the rest of the (single caliber) TRG line.
Even though the TRG-21 obtained its origins from the successful Sako TR-6 target rifle and 1984–1986 development work for the hardly produced Valmet Sniper M86 rifle by the former Finnish state firearms company Valmet which merged with Sako, the 4.7 kg (10 lb 6 oz) TRG-21 was designed as a result of a thorough study of sniper requirements.
In 1989 Sako Ltd. (Riihimäki, Finland) introduced the TRG-21 precision rifle as a sniper rifle model chambered in .308 Winchester. With the introduction of the TRG bolt-action, Sako moved away from the modified two-lug Mauser bolt-actions, favoured during the past, to an action with a symmetrical three-lug bolt of 19 mm (0.75 in) diameter, displaying a locking surface of 75 mm2 (0.116 in2). The TRG-21 action was designed for a maximum cartridge length of 75 mm (2.95 in). The evolution of this design continues to the present and can be found in Sako's hunting rifle offerings, the Sako 75 and the Sako 85. Subsequently, a second precision/sniper rifle with a 20 mm (0.79 in) longer scaled up magnum action emerged as the TRG-41 in order to take advantage of the .338 Lapua Magnum cartridge.
A more hunting oriented variation of the TRG was introduced in 1992 as the TRG-S M995 and TRG-S M995 Magnum, which both use the same scaled up magnum action and bolt (different bolt handle) as the TRG-41 with the exception that the receiver is open at the top with an integral Sako-type wedged dovetail rail rather than possessing a cartridge ejection port on the right side and a parallel 17 mm (0.67 in) integral dovetail rail as found with the TRG-41. The TRG-S M995 (Magnum) was produced until 2003 and chambered in eight standard chamberings and fourteen magnum chamberings, including .338 Lapua Magnum. All TRG-S M995 rifles utilized the same stock and receiver designed for a maximum cartridge length of 95 mm (3.74 in). Four different sized detachable box magazines and three different bolt bodies were used to accommodate the dimensionally different rifle cartridges offered. A carbine variant of the TRG-S was also produced that according to Sako literature featured a 520 mm (20.5 in) long barrel. However, M995 carbines imported to the United States featured a 495 mm (19.5 in) barrel and were chambered in .375 H&H Magnum only. Sako planned to produce a short action TRG-S M975 designed for a maximum cartridge length of 75 mm (2.95 in), that would have been based on the TRG-21. In the end Sako abandoned this plan and only a handful of M975 prototypes were produced.
To make the TRG system more suitable for military use, Sako upgraded and improved the TRG-21/41 design in the late 1990s. Some TRG accessories like the muzzle brake and bipod (that lets the rifle swivel or "hang" near its bore axis offering a more stable shooting position with large and heavy aiming optics mounted) were also improved. This resulted in the TRG-22/42 rifle system introduced in 1999.