3"/23 caliber gun | |
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Type |
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Place of origin | United States |
Service history | |
In service | 1913—1946 |
Used by | US Navy |
Wars | World War I World War II |
Production history | |
Manufacturer |
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Variants | Mark 9, 13, and 14 |
Specifications | |
Mass |
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Length |
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Barrel length |
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Shell | 16.5 lb (7.5 kg) 76.2x234 mm R |
Caliber | 3-inch (76 mm) |
Elevation | -15° to +65° or +75° |
Traverse | 365° |
Rate of fire | 8 – 9 rounds per minute |
Muzzle velocity | 1,650 feet per second (500 m/s) |
Effective firing range |
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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]