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A military small & medium caliber ammunition collection

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20 x 102mm United States

20 x 102mm TP M55A2 United States profile view.20 x 102mm TP M55A2 United States head view.

Details

TypeTP, M55A2
Projectilesteel, aluminum windscreen, blue, 1 copper driving band Projectile Markings: (white ink) 20 MM M55A2 LC-81K210-019 WM-81E002-005 M55A3B1
Casesteel, choke crimp, cadmium plated Markings: (black ink) 20MM M103A1 RNO79F922-001
Primerelectric, flat, brass, ring crimp, red annulus
Headstamp[none]