12-inch/50-caliber Mark 8 gun
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The 12"/50 caliber gun Mark 8 was a US naval gun mounted on the Alaska-class cruiser. The gun, like the "large cruiser" that mounted it, was intended to fill the gap between US "heavy cruisers" (6-8") and US battleships (14-16"). The name describes the size of the shells, 12 inches in diameter, and the length of the bore in calibers (50 bore diameters).
Quick Facts Type, Place of origin ...
12"/50 caliber Mark 8 gun | |
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Type | Naval gun |
Place of origin | United States |
Service history | |
In service | 1944–1961[1][2] |
Used by | Alaska-class cruisers |
Wars | World War II |
Production history | |
Designed | 1939 |
Manufacturer | Naval Gun Factory, Midvale and Bethlehem Steel Corporation, Watervliet Arsenal[1] |
Specifications | |
Barrel length | 51 feet (15.54 m) bore (50 cal)[1] |
Shell | 1,140 pounds (520 kg) |
Caliber | 12 inches (304.8 mm)[1] |
Rate of fire | 2.4–3.0 rounds per minute[1] |
Maximum firing range | 38,573 yards (35,271 m)[1] |
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