
| Type | Fired |
|---|---|
| Projectile | [none] |
| Case | aluminum, light bronze anodized and varnished, 1 hole |
| Primer | percussion (fired), flat, brass |
| Headstamp | [none] |
| Notes | Pressure test case with small hole in side and notch milled on rim. This is an early experimental round that lead to the 30 x 173mm GAU-8. |