20 x 110mm RB United States
Details
| Type | Dummy |
|---|---|
| Projectile | steel, aluminum windscreen, brown, 1 copper driving band Projectile Markings: (stamped) MK 26-1-R |
| Case | brass, 3 holes |
| Primer | none |
| Headstamp | 1944 20MM MK4 (raised in diamond) B |
| Type | Dummy |
|---|---|
| Projectile | steel, aluminum windscreen, brown, 1 copper driving band Projectile Markings: (stamped) MK 26-1-R |
| Case | brass, 3 holes |
| Primer | none |
| Headstamp | 1944 20MM MK4 (raised in diamond) B |