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The 3-inch ordnance rifle was mounted on the standard carriage for the 6-pounder field gun. Because its projectile was heavier than a 6-pound shot, the 3-inch rifle's greater recoil sometimes caused damage to the trail or the cheek pieces of the carriage. [17] The 6-pounder carriage weighed 900 lb (408 kg). [18]
3.8-inch Gun, Models of 1904 and 1907 Similar to the 3-inch gun, but scaled up with a significantly longer barrel - 111.25 inches (2.826 m) overall gun body length instead of 87.8 inches (2.23 m) - in a larger caliber, with a lengthened recoil - 58.5 inches (1.49 m) instead of 45 inches (1.1 m) - as well as with a different extractor.
It was determined that the weapon was too heavy and had too much recoil for mobile mountings, so a new weapon based on the barrel of the lighter and less powerful 3-inch gun M1898 was developed, designated the 3-inch gun M1918. This was the standard US anti-aircraft gun until partially replaced by the 3-inch gun M3 in 1930; some M1918 guns saw ...
The 3-inch gun M5 was an anti-tank gun developed in the United States during World War II. The gun combined a 3-inch (76.2 mm) barrel of the anti-aircraft gun T9 and elements of the 105 mm howitzer M2. The M5 was issued exclusively to the US Army tank destroyer battalions starting in 1943.
The 3"/21 caliber gun (spoken "three-inch-twenty-one-caliber") was a field gun for United States Navy and United States Marine Corps. They were a simple horse-drawn artillery gun that were mostly used by the Marines. The guns have also been described as Boat Guns but information on type of mounts has not been found. [1]
The 3-inch/23-caliber gun (spoken "three-inch-twenty-three-caliber") was the standard anti-aircraft gun for United States destroyers through World War I and the 1920s. United States naval gun terminology indicates the gun fired a projectile 3 inches (76 mm) in diameter, and the barrel was 23 calibers long (barrel length is 3" × 23 = 69" or 1.75 meters.) [1]
To avoid the projectile shattering or ricocheting when it impacts the ground, a proprietary round-nosed 7.62×51mm bullet was developed for use with the rifle. The rifle could also use regular 7.62mm bullet for combat use. The rifle weights around 4.6–5 kg, has a barrel length of 510 mm (20.1 in) and overall length of 908 mm (35.7 in). [53] [54]
3-inch/50 Mk. 22 in Mk. 22 mounting in Aalborg Maritime Museum. During the final year of the Second World War , it was found that multiple hits from Oerlikon 20 mm cannon and Bofors 40 mm guns were often unable to shoot down high-speed Japanese kamikaze aircraft at short ranges before they hit Allied ships; the 3-inch/50-caliber gun was adopted ...