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The 16-inch/50 caliber Mark 7 guns of the forward turret of the battleship USS Wisconsin (BB-64) fire at enemy targets ashore on the Korean Peninsula on 30 January 1952 during the Korean War. Employees working with the automatic 16-inch powder stacking machine at Naval Ammunition Depot Hingham, Mass. during World War II.
For example, a 4-inch gun of 50 calibers would have a barrel 4 in × 50 = 200 in long (written as 4" L/50 or 4"/50). A 16-inch gun of 50 calibers (16" L/50) has a barrel length of 50 × 16 = 800 inches (66 ft 8 in). Both 14-in and 16-in navy guns were common in World War II.
These built-up guns were 66 feet 8 inches (20.32 m) long—50 times their 16-inch (406 mm) bore, or 50 calibers from breechface to muzzle. With a full powder charge of 700 pounds (320 kg), the guns were capable of firing a 2,110-pound (960 kg) Mark 3 armor-piercing shell with a muzzle velocity of 2,800 feet per second (850 m/s) firing out to an ...
The amount of gun elevation needed to project a 5-inch (127 mm) shell 9 nmi (17 km) is different than the elevation needed to project a 16-inch shell the same distance. The ballistics calculations in these mechanical analog computers were performed by mechanisms like differential gears, levers, and small rods riding on the surface of three ...
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The 16-inch gun was a built-up gun constructed in a length of 45 calibers. The Mark 1 had an A tube, jacket, liner, and seven hoops , four locking rings and a screw-box liner. When the gun was designed in August 1913 it was referred to as the "Type Gun (45 Cal.)" as an effort to conceal the gun's true size of 16 inches.
The six most common shotgun gauges, in descending order of size, are the 10 gauge, 12 gauge, 16 gauge, 20 gauge, 28 gauge, and .410 bore. [7] By far the most popular is the 12 gauge, [7] particularly in the United States. [8] The 20-gauge shotgun is the next most popular size [citation needed], and is popular for upland game hunting. The next ...
1 made; 16-inch conversion of a 18-inch Mk I (40 caliber) gun; an experimental gun used for prototype for the 16"/45 (40.6 cm) Mark I guns destined for the Nelson-class battleships; never used in combat (this gun was not used in combat as 18-inch gun and not used in combat after conversion into 16-inch gun); none survives [29] 406