PMC – 1000 Rounds. 3. AR-15 .223 AMMO. Unlike the 5.56 rounds above, if you have a .223 barrel or prefer lighter rounds while shooting, here are our recommendations. PMC 55 GR FMJBT: ...

The U.S. military has long complained about the penetration capabilities of 5.56 mm ammunition, and now the Navy and the Corps are looking to remedy the issue with a new barrier-penetrating 5.56 ...