5.56 NATO, Lake City XM855, 62 Grain SS109 Penetrator Bullet, 30 Round Box on Strippers.
Arguably the best of the 5.56x45mm ammo, XM855, current and original as supplied to U.S. troops. M855 ammo with 62 grain SS109 penetrator green tip projectile, military spec annealed case shoulder, and crimped bullet and primer. NATO marked and pre-loaded on 10 round stripper clips, with three stripper clips per cardboard sleeve. Ready to quickly load your 30 round magazines.
Velocity at 78 ft: 3025 fps