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20 x 102mm United States

20 x 102mm API PGU-4/B United States profile view.20 x 102mm API PGU-4/B United States head view.

Details

TypeAPI, PGU-4/B
Projectilecopper, steel penetrator, black, 1 copper driving band Projectile Markings: (white ink) DUMMY PGU-4/B
Casebrass, choke crimp, 4 holes Markings: (black ink) 20MM, M103 RNO-2-66-69
Primerelectric (fired), flat, brass, ring crimp, red annulus
Headstamp[none]
NotesThis is a dummy loading of the PGU-4/B API cartridge. The projectile appears to be copper through scratches in the paint, and the AP core is detectable with a magnet. The projectile body is not magnetic.