20 x 102mm United States
Details
| Type | Dummy, PGU-40A/B |
|---|---|
| Projectile | steel, aluminum windscreen, gold, 1 iron driving band Projectile Markings: (black ink) GLN14A852-002 20MM |
| Case | brass |
| Primer | hex bolt, steel |
| Headstamp | [none] |
| Notes | Hex bolt is filled with a hard rubber or plastic substance. |