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A military small & medium caliber ammunition collection

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20 x 102mm United States

20 x 102mm Proof M54A1 United States profile view.20 x 102mm Proof M54A1 United States head view.

Details

TypeProof, M54A1
Projectilesteel, purple, 1 copper driving band Driving Band Markings: GLN-1-16-69 M54A1
Casebrass, choke crimp
Primerelectric, flat, brass, ring crimp, red annulus
Headstamp[none]