5.56 x 45mm United States
Details
| Type | Ball (Reduced Range) |
|---|---|
| Projectile | Round Nose, GM |
| Case | brass |
| Primer | percussion, flat, brass, ring crimp, red annulus |
| Headstamp | R A 7 0 |
| Type | Ball (Reduced Range) |
|---|---|
| Projectile | Round Nose, GM |
| Case | brass |
| Primer | percussion, flat, brass, ring crimp, red annulus |
| Headstamp | R A 7 0 |