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In artillery, caliber or calibre [nb 1] is the internal diameter of a gun barrel, or, by extension, a relative measure of the barrel length. Rifled barrels [ edit ]
Weapons of similar caliber may differ in exact caliber (i.e. 76 mm and 76.2 mm will both be under 76 mm artillery). Non metric calibers are placed within the nearest calculated metric category. Wikimedia Commons has media related to Artillery by calibre .
In guns, particularly firearms, but not artillery, where a different definition may apply, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel bore – regardless of how or where the bore is measured and whether the finished bore matches that specification. [1]
The 5-inch (127 mm)/54-caliber (Mk 45) lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in (127 mm) L54 Mark 19 gun on the Mark 45 mount. [1] It was designed and built by United Defense, a company later acquired by BAE Systems Land & Armaments, which continued manufacture.
10"/31 caliber gun United States: 1890s - 1921 254 mm (10.0 in) 10"/40 caliber gun Mark 3 United States: 1890 - 1921 254 mm (10.0 in) RML 10 inch 18 ton gun United Kingdom: 1868 - 1900s 254 mm (10.0 in) BL 10 inch Mk II - IV 32-caliber guns United Kingdom: 1885 - 1900s 254 mm (10.0 in) Cannone da 254/40 A Kingdom of Italy: 1893 - 1940s
Infantry gun/AA gun 37 mm 1.457 inch Ordnance QF 2-pounder: Anti-tank gun 40 mm 1.575 inch Ordnance QF 2-pounder "pom pom" Anti-aircraft gun 40 mm 1.575 Ordnance QF 3-pounder Vickers: Naval gun 47 mm 1.85 inch Ordnance QF 6-pounder: Anti-tank gun 57 mm 2.244 inch Ordnance BL 10-pounder Mountain gun: Mountain gun 69.8 mm 2.75 inch
Early 15th-century Flemish giant cannon Dulle Griet at Ghent (caliber of 660 mm). This list contains all types of cannon through the ages listed in decreasing caliber size. For the purpose of this list, the development of large-calibre artillery can be divided into three periods, based on the kind of projectiles used, due to their dissimilar characteristics, and being practically ...
Adolf Gun, a Nazi German cross-channel firing gun. The formal definition of large-calibre artillery used by the United Nations Register of Conventional Arms (UNROCA) is "guns, howitzers, artillery pieces, combining the characteristics of a gun, howitzer, mortar, or rocket, capable of engaging surface targets by delivering primarily indirect fire, with a calibre of 76.2 mm (3.00 in) and above". [1]