A military small & medium caliber ammunition collection

20 x 110mm HS United States

20 x 110mm HS TP M99 United States 20 MM M21A1 LC 52 profile view.20 x 110mm HS TP M99 United States 20 MM M21A1 LC 52 head view.

Details

TypeTP, M99
Projectilesteel, aluminum windscreen, black, 1 copper driving band Projectile Markings: (white ink) 20G TP M99 LC-1-66 Driving Band Markings: *WQT LOT 1-23 52 20MM M99*
Casebrass, knurled choke crimp
Primerpercussion, flat, brass, ring crimp, black annulus
Headstamp20 MM M21A1 LC 52