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10 lb 11 oz Shrapnel 11 lb 4 oz common shell 10 lb 8 oz Segment 10 lb 9 oz case: Calibre: 3-inch (76.2 mm) Breech: Armstrong screw with vertical sliding vent-piece (block) Muzzle velocity: 1,239 feet per second (378 m/s) [2] Effective firing range: 3,400 yards (3,100 m)
QF 12 pounder 12 cwt AA gun, British AA gun of World War I; QF 12 pounder 18 cwt naval gun, British naval gun of 1904–1920s; RBL 12 pounder 8 cwt Armstrong gun, British field gun of 1859; Twelve-pound cannon, cannon sized for a 12-pound ball, see Naval artillery in the Age of Sail; 12-pounder Whitworth rifle, British rifled breechloader field ...
Described as one of the greatest steps forward in gun design for centuries, Armstrong was knighted for his services to the British state in 1859. [1] The rifled breech-loading gun (produced in various calibre ranges including six, nine, 12, 20, 40 and 110 pound models) was an innovative design that revolutionised artillery use across the world.
The QF 12-pounder 12-cwt gun (Quick-Firing) (abbreviated as Q.F. 12-pdr. [12-cwt.]) was a common, versatile 3-inch (76.2 mm) calibre naval gun introduced in 1894 and used until the middle of the 20th century. [4] It was produced by Armstrong Whitworth, Elswick and used on Royal Navy warships, exported to allied countries, and used for land ...
The introduction of Cordite also led to the decision that the 12-pounder was capable of firing a heavier shell up to 15 lb (6.8 kg). A 14-pound shell was adopted and the gun became a "15-pounder" from 1895. [4] At that point the 12-pounder 7 cwt became redundant.
12-pounder Whitworth rifled cannon M1841 howitzer In the left of this picture U.S. Grant can be seen firing a mountain howitzer. The twelve-pound cannon is a cannon that fires twelve-pound projectiles from its barrel, as well as grapeshot, chain shot, shrapnel, and later shells and canister shot. [1]
An 1871 diagram showing the gun and carriage of the RML 9-pounder 8 cwt field gun. The 9-pounder 8 cwt Rifled Muzzle Loader was the field gun selected by the Royal Artillery in 1871 to replace the more sophisticated RBL 12 pounder 8 cwt Armstrong gun, which had acquired a reputation for unreliability. [2]
The Armstrong gun retained a larger number of smaller coils, [12] which was more expensive to make. On pictures these coils show as humps as the gun gets smaller while it protrudes to the front. The Rijksmuseum model of the RML 7-inch Armstrong Gun shows 5 coils. The picture of the RML 7-inch gun (Woolwich) Mark I shows 1 more. [11]