
 
            | Type | Dummy, T206E10 | 
|---|---|
| Projectile | steel, steel fuze, olive drab, 1 copper driving band Projectile Markings: (white ink) 30MM T206 E10 INERT LOADED K.O.P.-SA-1 (black ink on fuze) INERT INERT Driving Band Markings: * HVM-10-2 54 30MM HEI T2306 E10* | 
| Case | brass, choke crimp, 2 holes Markings: (black ink) DUMMY ROUND DUMMY ROUND | 
| Primer | electric (fired), flat, brass, ring crimp | 
| Headstamp | [none] |