5.56 x 45mm United States
![5.56 x 45mm Ball M855 United States ⊕ LC 13 [SCAMP 10] profile view.](/ctg-images/large/1977-s.jpg)
![5.56 x 45mm Ball M855 United States ⊕ LC 13 [SCAMP 10] head view.](/ctg-images/large/1977-h.jpg)
Details
| Type | Ball, M855 |
|---|---|
| Projectile | FMJ, GM, steel core, green tip, 1 knurled crimping cannelure |
| Case | brass, taper crimp |
| Primer | percussion, flat, brass, ring crimp, purple annulus |
| Headstamp | ⊕ LC 13 [SCAMP 10] |
| Notes | From lot SMQ13K813S018 |