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The Armstrong Breech Loading 12 pounder 8 cwt, later known as RBL 12 pounder 8 cwt, was an early modern 3-inch rifled breech-loading field gun of 1859. Design [ edit ]
The Armstrong gun—mainly the 12-pounder—was used extensively in the 1863 conflict in New Zealand between British troops and Maori in the Waikato. A well preserved 12-pounder which was used in the battle of Rangiriri is at the Te Awamutu museum. The barrel can traverse 6 degrees left or right without moving the gun carriage.
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 ...
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 ...
Later 12-pound cannons included the breechloading RBL 12-pounder 8 cwt Armstrong gun introduced in 1859, [10] Joseph Whitworth's field guns and the boat howitzers invented by John A. Dahlgren and used by the Federal navy during the Civil War. [11]
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 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]
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.