QF 6-pounder 6 cwt Hotchkiss

QF 6 pounder 6 cwt Hotchkiss Mk 1 - 2
QF 6 pounder 6 cwt Hotchkiss used for gunnery training
TypeTank gun, armoured train gun
Place of originUnited Kingdom
Service history
In service1917–1944
Used byUnited Kingdom
WarsWorld War I, World War II
Production history
DesignerHotchkiss
Specifications
Barrel lengthBore: 52.12 inch (1.32 m) 23 calibres
Total: 60 inch (1.52 m)
ShellFixed QF, HE (57 x 306R)
Calibre2.244 in (57 mm)
BreechVertical sliding block
RecoilHydro-spring
Muzzle velocity1,350 ft/s (411 m/s)
Effective firing range7,300 yards (6,675 m)

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 Mark IV onwards.

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