Small Caliber Ammunition
5.56 x 45 MM M855 ( NATO)
Case
5.56 mm
Bullet
Rimless
Propellent
Ball powder
Primer
Boxer
Projectile Weight
4.0 gm
Muzzel Velocity
910 +- 10 ms ( at 25 m from muzzel )
Consistency
165 mm ( at 457 m )
Penetration
Max 3.45 mm mild steel plate at 700 m
Chamber pressure Avg .
342 Mpa
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