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In artillery, caliber or calibre [nb 1] is the internal diameter of a gun barrel, or, ... They are 16 inches in diameter and the barrel is 800 inches long ...
The term caliber is used as a measure of length of artillery barrels from muzzle to breech, expressed as a multiple of the bore diameter. 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).
These guns were 50 calibers long, 50 times their 16-inch (406 mm) bore diameter with barrels 66.7 ft (20.3 m) long, from chamber to muzzle. Each gun weighed about 239,000 lb (108 t) without the breech, and 267,900 lb (121.5 t) with the breech. [ 1 ]
This is a list of firearm cartridges that have bullets in the 9 millimeters (0.35 in) to 9.99 millimeters (0.393 in) caliber range. Case length refers to the round case length. OAL refers to the overall length of the loaded round. All measurements are given in millimeters, followed by the equivalent in inches between parentheses.
Cartridge, caliber .50, M1022 long-range sniper The .50 caliber M1022 has an olive-green bullet coating with no tip ID coloration. The projectile is of standard ball design. It is designed for long-range sniper training and tactical use against targets that do not require armor-piercing or incendiary effects. It exhibits superior long-range ...
Mlllions of rifles have been produced in this caliber, with many passed on to a new generation of hunters. [36] The practicality of hunting with an inherited rifle and cartridge, especially if the combination has been seen as effective at modest range, [37] is an important factor in some circles. The widespread availability of .30-30 loads ...
20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called " guns ", from larger-caliber " cannons " (e.g. machine gun vs. autocannon ), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon.
The .45-70 is a long-range caliber, and accurate use requires knowledge of windage and elevation by minute of angle and a sense for estimating distance in these calculations. The .45-70 retains great popularity among American hunters, and is still offered by several commercial ammunition manufacturers.