7.62mm NATO United Kingdom
Details
| Type | Proof, L4A1 |
|---|---|
| Projectile | FMJ, GM |
| Case | brass, segmented taper crimp |
| Primer | percussion, flat, brass, ring crimp |
| Headstamp | RG 61 7.62 L4A1 |
| Notes | The extractor groove appears to have remnants of a copper wash. |