I came across this drawing in the reference collection adn I can not seem to find anymore info on it, It is called the .33 cartridge and it looks like it was an experimental or trial round for the Government S.A.C. Panel. Can anyone shed any more light on this round, it was in a folder labelled misc military drawings so I am asuming it is military ???
It has the apearance of a scaled down .55 Boys round