The 223 Remington loaded from BlackGun Industries is loaded with a 55 grain M193 projectile in new Lake City 5.56x45mm NATO brass to 223 Remington pressure specifications. 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. 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.