
| Type | Break-Up |
|---|---|
| Projectile | plastic, iron dust filled, olive drab, 1 nylon driving band Projectile Markings: (white ink) 25 MM BREAK-UP LOT NWM-?-3-83 |
| Case | steel, choke crimp, green painted |
| Primer | none |
| Headstamp | (PSW) 023 OE 83 |
| Notes | Case length for the Oerlikon KBB cartridge varies based on projectile type, with non-sabot rounds having a slightly shorter case to accommodate the projectile's driving bands. This round has the shorter case. |