
| Type | API, T69E1 |
|---|---|
| Projectile | steel, aluminum windscreen, black, blue tip, 1 copper driving band Projectile Markings: (white ink) 20MM API T69E1 LOT-KOP-68-1 Driving Band Markings: PMC 4-4 52 20MM T-69E1 |
| Case | brass, knurled choke crimp |
| Primer | electric, flat, brass, ring crimp, red annulus |
| Headstamp | F A * 52 * |
| Notes | This is an early API loaded on an necked-up .60 cal case. |