A military small & medium caliber ammunition collection

20 x 102mm Unknown

20 x 102mm TP  Unknown  profile view.20 x 102mm TP  Unknown  head view.

Details

TypeTP
Projectilesteel, aluminum windscreen, 1 copper driving band
Casebrass, choke crimp Markings: (black ink) 20MM M103 ACN84H004-?27
Primerelectric, flat, brass, ring crimp, red annulus
Headstamp[none]