Notes on the tables

The "country of origin' abbreviations are the usual international motor vehicle letters, except for UK and PRC (China). Both Soviet and Russian equipment are listed as "SU\ Entries are normally limited to the country of origin or principal production, but may be duplicated where there is major production in other countries.

Cartridge case measurements are taken from individual examples and there may in practice be some variations from those given. Many other loadings of some cartridges have seen service. The loading given is the most typical; additional loadings are given where significant. Some confusion is possible over APDS and APFSDS loadings, concerning whether the projectile weight includes the sabot; published information is frequently vague on this point. An indication is given in the tables by the muzzle energy figure; where this is significantly lower than other loadings of the cartridge, it is likely that the figure concerns the projectile only.

Gun specifications could also change considerably as weapons developed, with variations in weight, barrel length and rate of fire. The rate of fire was also reduced (usually by 10-20%) by synchronisation, and generally varied by around 10% anyway.

AT ATR

hbl CL CTA

exp GD GE HS IJA IJN

MDHC

Oe Rh RhB

anti-aircraft

American Armament Corporation armoured fighting vehicle automatic grenade launcher for aircraft use anti-tank anti-tank rifle barrel caseless cased telescopic (consumable case) gun uses electrical priming - others are percussion; (?) indicates not known experimental use only

General Dynamics

General Electric

Hispano-Suiza

Imperial Japanese Army

Imperial Japanese Navy

McDonnell Douglas Helicopters

(Hughes), now Boeing

Oerlikon

Rheinmetall

Rheinmetall-Borsig gun fitted with water-cooled barrel all others are air-cooled

(NB: gun weight is without water)

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