The 5.56x45mm NATO loaded by BlackGun Industries is loaded with a 62 grain M855 Full Metal Jacket Penetrator projectile in new Lake City brass. Lake City brass is produced to Military Specifications and is known for its high quality and consistency. This brass does have the crimped in primer. This ammunition is loaded with green painted penetrator tip, steel core bullets and is non-corrosive in boxer-primed reloadable brass cases. All of the components this ammunition is loaded with are all brand new, including the Lake City brass. Lake City brass is polished before, but not after final annealing in order to leave the annealing iris visible per military specification inspection requirements. This ammunition is accurate and reliable but is not polished to a shine and does show evidence of the manufacturing process. This ammunition is New Production, loaded in boxer-primed reloadable brass cases.
Please Note: While the 5.56x45mm NATO will fit in a .223 Remington chamber, the 5.56 is a military round that runs at higher pressures than its .223 counterpart and is not recommended to be fired in a .223 Remington chamber.