Type | TP, M99 |
---|---|
Projectile | steel, 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* |
Case | brass, knurled choke crimp |
Primer | percussion, flat, brass, ring crimp, black annulus |
Headstamp | 20 MM M21A1 LC 52 |