Cartridge ID needed

Bullet GMCS fmj .322"
Ctg L 3.07"
Case L 2.20"
Head .544"
Rim .542"

Hi Bruce,

Great cartridge! It is a British .303/7.92 mm Magnum experimental from the 1930’s.

Regards,

Fede

Thank you Fede

From measurements, case seems derived from 1919 .303
Lewis Rimless? Expanded to take a 7,9 bullet, maybe for
Converted P14 rifles???.

Doc AV