Example Round (INERT) : Length 166mm x Diameter (Base) 29.5mm

Cartridge Hispano-Suiza : Length 110mm x Diameter (Base) 24.9mm (Body) 24.9mm

Cartridge Oerlikon : Length 80mm x Diameter (Base) 18.9mm (Body) 22.0mm


Projectile : Length 76mm x Diameter 17.0mm


Projectile Fuze : Diameter 19.7mm


 

: ( BBC ) Barking Brassware Co, Barking, Essex, England

 

 

 

BBC 1941 20MM . . .
: ( H ) Hall's Telephone Co. Ltd, England

 

 

 

H 1942 20MM . . .
: ( K. K2 ) Kynoch Factories, Imperial Chemical Industries Ltd., Birmingham, England

K. 1941 20MM K2 1941 20MM K2 1942 20MM K2 1943 20MM
: ( RG ) Royal Ordnance Factory, Radway Green, England

 

 

RG 1942 20MM RG 1952 20MM . .
: ( R.H. ) Raleigh Cycle Co., Lts., Nottingham, England

 

R.H. 1942 20MM R.H. 1943 20MM R.H. 1944 20MM .
: ( ST ) Royal Ordnance Factory, Steaton, England

 

ST 1942 20MM ST 1943 20MM ST 44 20MM .

: ( DAC ) Dominion Arsenal, Québec, Canada

 

 

 

DAC 1943 20MM . . .

 

: ( AT ) 1) Klöckner-Werke, Div. Hasper Eisen- u. Stahlwerk, Hagen-Haspe, Germany  
2) Waffenwerke Brunn, Vsetin plant, Czechoslovakia (Under German Occupation)

 

 

 

AT 40 31 . . .
: ( BK ) Hugo Schneider AG, Plant Altenburg, Germany

f BK 40 34 f BK 40 36 k BK 40 36 e BK 40 33

: ( FSC ) Florence Stove Company, Kankakee, Illinois, USA

 

 

 

FSC 1943 20MM MK2 . . .

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