
| Type | AP-T Hard Core |
|---|---|
| Projectile | aluminum, black with red band, white tip, 1 iron driving band Projectile Markings: (red ink) 20mm APCT 820 A TZ 001B/81(stamped) A 81 AH |
| Case | steel, segmented crimp, black lacquered |
| Primer | none |
| Headstamp | 20mm 820 A R1M1 A 80 EW |