4.7 inch gun

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A 4.7 inch Gun is any of a number of British-built 120 mm naval artillery guns. Several of these guns were designed and manufactured by the Elswick Ordnance Company, part of Armstrong Whitworth. They were a major export item and hence were actually of 120 millimetres (4.724 in) calibre to meet the requirements of metricised navies (although the size was ultimately based on a 12-pound round shot), 4.7 inch is an approximation used for the British designation. 4.7 inch guns include:

• QF 4.7 inch Gun Mk I - IV British naval gun deployed on cruisers 1888 to 1918, also as a field gun in World War I
• QF 4.7 inch Mk V naval gun Japanese-built gun, armed British merchant ships in World War I & World War II
• BL 4.7 inch /45 naval gun British naval gun used 1918 to 1945^[1]
• QF 4.7 inch Mk VIII naval gun British anti-aircraft gun on Nelson class battleships in World War II
• 4.7 inch QF Mark IX & XII British naval guns deployed on destroyers in World War II
• QF 4.7 inch Mark XI gun British naval gun deployed on destroyers in World War II