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A military small & medium caliber ammunition collection

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20 x 102mm United States

20 x 102mm API T221E2 United States profile view.20 x 102mm API T221E2 United States head view.

Details

TypeAPI, T221E2
Projectilesteel, aluminum windscreen, black, blue tip, 1 copper driving band Projectile Markings: (white ink) 20MM API T221E2. KOP-111-40 Driving Band Markings: PPN 21-34 55 20MMT312E2
Casebrass, knurled choke crimp
Primerelectric, flat, brass, ring crimp, red annulus
Headstamp[none]