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A military small & medium caliber ammunition collection

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20 x 110mm USN United States

20 x 110mm USN Inert United States F A 51 profile view.20 x 110mm USN Inert United States F A 51 head view.

Details

TypeInert
Projectilesteel, black, 1 copper driving band Driving Band Markings: 20MMT114-1951
Casebrass, knurled choke crimp Markings: (black ink) INERT FA X 2016 69
Primerblind
HeadstampF A 51
NotesInert case filler. Steel collar in extractor groove.