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A military small & medium caliber ammunition collection

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20 x 102mm United States

20 x 102mm Dummy M51A1E1 United States profile view.20 x 102mm Dummy M51A1E1 United States head view.

Details

TypeDummy, M51A1E1
Projectilesteel, zinc chromate, 1 steel driving band Projectile Markings: (black ink) LC 60-4 20MM DUMMY M51A1E1 (stamped) 20MM DUMMY M51A1E1
Casesteel, choke and stab crimp, zinc chromate plated
Primerinert, flat, steel, 3-triangle crimp
Headstamp[none]
NotesCase has inert filler. Choke crimp shows rounded pumch marks. Primer is a steel plug.