Cartridge, S.A., Ball, Helmet Test, .455 Inch


#1

Hi,

I’m trying to locate a drawing of the Cartridge, S.A., Ball, Helmet Test, .455 Inch, or at least locate whether it had an official Mark Number.

It is similar to a Ball, .455 Inch, Mark 11, however the projectile is about 100 gr lighter and tapers from the case mouth, to a point.

Any help would be appreciated.

John