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20 x 110mm USN United States

20 x 110mm USN TP United States NECO 1951 20MM-MK.5. MOD.0 profile view.20 x 110mm USN TP United States NECO 1951 20MM-MK.5. MOD.0 head view.

Details

TypeTP
Projectilesteel, black, 1 copper driving band Driving Band Markings: PMM-1-13 51-20MM T-114
Casesteel, knurled choke crimp, cadmium plated, 1 hole Markings: (black ink) LOT FA S 17
Primerelectric, flat, brass, 3-stake crimp, red annulus
HeadstampNECO 1951 20MM-MK.5. MOD.0
NotesHole in case to remove powder.