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BL 6 inch Mk XII naval gun, a British naval gun; MK-3-12 (1907), a Russian naval main weapon that used three 12-inch guns in a single mounting; Mark 12 torpedo (1930), an American 21-inch torpedo; 5"/38 caliber gun or Mark 12 5"/38 (1934), a widely used American 5-inch naval gun; 18 inch Mark XII torpedo (1935), a British 18 inch torpedo
The Mark 12 5"/38-caliber gun was a United States dual-purpose naval gun, but also installed in single-purpose mounts on a handful of ships. The 38- caliber barrel was a mid-length compromise between the previous United States standard 5"/51 low-angle gun and 5"/25 anti-aircraft gun .
Centurion Arms manufactures clones of the Mk 12. [20] Troy Industries made a retro Mk 12 for sale in 2017. [21] Oberland Arms released a version of the Mk 12 in 2019. [22] Palmetto State Armory released clones of the Mk 12 Mod 0, Mod 1, and Mod H in 2023 known as the Sabre Mk 12. Precision Reflex Inc unveiled a Mk 12 rifle chambered in .308 ...
The BL 6-inch Mark XII naval gun [8] was a British 45 calibre naval gun which was mounted as primary armament on light cruisers and secondary armament on dreadnought battleships commissioned in the period 1914–1926, and remained in service on many warships until the end of World War II.
Mk 12 Gun Assembly (right gun) 5in/38cal semi-fixed ammunition. Anti-aircraft Common (AAC) Projectile with Full Service Charge. The Mk 12 Gun Assembly (pictured) was a semi-automatic, power rammed, vertical sliding-wedge breech block type gun. The Gun Assembly shown in the picture is the mount's right gun.
Vice-Admiral Doveton Sturdee in front of the Mk XII guns of a wing turret on HMS Hercules. In an effort to increase the armour-piercing capability and range of a 12-inch gun, the 50 calibres/600 inches Mk XI's barrel was 5 calibres/60 inches longer than the previous Mk X gun's 45 calibres. As a result, muzzle velocity increased from 2,700 feet ...
The Mark 3, gun Nos. 15–48 and 50–56, was constructed of tube, jacket, and eight hoops. It was found that the early guns suffered from excessive bore erosion, in an attempt to fix this the Navy reduced the propellant charges to reduce the muzzle velocity, because of this the Mark 4, gun Nos. 49, 58–60, 150–154, and 179, was similar to ...
The Navy's Policy Board call for a variety of large caliber weapons in 1890, with ranges all the way up to 16-inch (406 mm), led to the development of the 12-inch (305 mm)/35 caliber gun. The Mark 1, gun Nos. 1–8, was constructed of gun steel, having a tube, jacket, ten hoops and a locking ring. The Mod 0, the original design, had the inner ...