6-pounder gun or 6-pdr, usually denotes a gun firing a projectile weighing approximately . Guns of this type include: *

QF 6 pounder Hotchkiss The Ordnance QF Hotchkiss 6 pounder gun Mk I and Mk II or QF 6 pounder 8 cwt were a family of long-lived light naval guns introduced in 1885 to defend against new, small and fast vessels such as torpedo boats and later submarines. There were ma ...

, a 57 mm naval gun of the 1880s; a similar weapon was designed by

Driggs-Schroeder Driggs-Schroeder was the name of several naval guns designed by US Navy officers William H. Driggs and Seaton Schroeder for the United States Navy in the late 1880s, fitted on ships built in the 1890s. Some Driggs-Schroeder weapons were also ado ...

for the US Navy *Driggs-Schroeder Marks II and III and Driggs-Seabury M1898 and M1900 57 mm guns on mobile mounts, used by the US Army circa 1890–1920 *

QF 6 pounder 6 cwt Hotchkiss The Ordnance QF 6-pounder 6 cwt Hotchkiss Mk I and Mk II was a shortened version of the original QF 6 pounder Hotchkiss naval gun, and was developed specifically for use in the sponsons of the later Marks of British tanks in World War I, from Ma ...

, a British 57 mm tank gun of 1917 *

QF 6 pounder Nordenfelt The QF 6 pounder Nordenfelt was a light 57 mm naval gun and coast defence gun of the late 19th century used by many countries. Note that this gun should not be confused with the short-barreled 57 mm Cockerill-Nordenfelt "Canon de capon ...

, a 57 mm naval gun of the 1880s very similar to the Hotchkiss *

Ordnance QF 6-pounder The Ordnance Quick-Firing 6-pounder 7 cwt,British forces traditionally denoted smaller ordnance by the weight of its standard projectile, in this case approximately . The approximate weight of the gun barrel and breech, "7 cwt" (cwt = hundredwe ...

, a British 57 mm anti-tank and tank gun of World War II *

QF 6 pounder 10 cwt gun The British QF (quick-firing) 6-pounder 10 cwt gun"6 pounder" refers to the approximate weight of projectiles, which was a traditional British way of denoting small guns. "10 cwt" referred to the approximate weight of the gun and breech in cwt (h ...

, a British twin mount naval and coast defence gun 1937–1956. Older types include: *

Canon de 6 système An XI The Canon de 6 système An XI was a French cannon and part of the Year XI system of artillery. It was part of the field artillery, and complemented the Gribeauval system. The canon de 6 système An XI was used extensively during the Napoleonic ...

, a French 6-pounder muzzle-loading cannon of the Napoleonic era * M1841 6-pounder field gun, an American 6-pounder smoothbore muzzle-loading cannon of the mid-1800s

Guns denoted by calibre

Examples simply referred to by caliber include: *

Bofors 57 mm gun The Bofors 57 mm gun is a nickname or designation given to several types of guns designed and developed by the Swedish company Bofors: *, a 57 mm anti tank gun for the Swedish army during WW2. * Bofors 57 mm Automatic Gun L/50, a 57 ...

family, including a WW2 field AT gun, a WW2 57 mm × 230 mm aircraft autocannon and a still-current family of three 57 mm x 438 mm naval artillery gun/anti air autocannons *

57 55 J The 57 55 J or ''57 mm, 55 caliber length model Jokinen coastal gun'' is a Finnish light coastal gun designed during the Continuation War. It the first coastal gun designed and manufactured completely in Finland and was intended to replace the o ...

, Finnish light coastal gun *

57 mm anti-tank gun M1943 (ZiS-2) The ZiS-2 (russian: ЗиС-2) ( GRAU index: 52-P-271) is a Soviet 57 mm anti-tank gun used during World War II. The ZiS-4 is a version of the gun that was meant to be installed in tanks. ''ZiS'' stands for ''Zavod imeni Stalina'' (Russian ''З ...

, Soviet 57×480 mmR AT gun, also used on the

ZiS-30 The ZiS-30 was a light self-propelled anti-tank gun built for the Soviet Red Army in 1941. It was based on the Komsomolets armoured artillery tractor. They were successful vehicles, but production was limited by the number of Komsomolets tra ...

Ho-401 cannon Ho-401 was a Japanese aircraft autocannon that saw limited, if any, use during World War II. It was a large-caliber version of the 37 mm Ho-203 cannon Ho-203 was a Japanese autocannon that saw considerable use during World War II. It was ...

, Japanese prototype aircraft autocannon *

Type 97 57 mm tank gun The Type 97 57 mm tank gun was originally the main armament of the Imperial Japanese Army Type 97 Chi-Ha medium tank during the Second World War. Design and use The Type 97 Chi-Ha tank was the most widely produced Japanese medium tank of th ...

, Japanese tank cannon *Ch-51(M), used on the Soviet assault gun

ASU-57 The ASU-57 was a small, lightly constructed Soviet assault gun specifically designed for use by Soviet airborne divisions. From 1960 onwards, it was gradually phased out in favour of the ASU-85. Development history The task to develop a lightw ...

AZP S-60 AZP S-60 (russian: Автоматическая зенитная пушка С-60, abbrev. АЗП (AZP); literally: ''Automatic anti-aircraft gun S-60'') is a Soviet towed, road-transportable, short- to medium-range, single-barrel anti-aircraft ...

, Soviet 57×347mmSR AA autocannon, also integrated into

ZSU-57-2 The ZSU-57-2 Ob'yekt 500 is a Soviet self-propelled anti-aircraft gun (SPAAG), armed with two 57 mm autocannons. 'ZSU' stands for '' Zenitnaya Samokhodnaya Ustanovka'' (russian: link=no, Зенитная Самоходная Установк ...

Older types include: * 5.7 cm Maxim-Nordenfelt, short fortress gun of the 1880s

Guns denoted by calibre

See also