The Hornady Frontier 5.56mm NATO 62 grain Full Metal Jacket ammunition covers a vast application range; from plinking, target shooting, hunting to law enforcement training and self defense. Using state-of-the-industry loading techniques, quality control procedures, and loaded at Lake City, Hornady ensures reliability of every Frontier cartridge. Frontier Cartridge features new, reloadable brass cartridges cases and military-grade boxer primers and propellant loaded with Hornady bullets.