American made and built on tradition - these are the hallmarks of Frontier cartridge. Frontier cartridge features Hornady bullets and is available in 5.56mm NATO. Applications range from plinking, target shooting and hunting to law enforcement training and self-defense.Features: Consistency in every cartridge - state-of-the-industry loading techniques and quality control procedures ensure the reliability of every Frontier cartridge round Rounds for all applications - Frontier cartridge offers ammunition configured for a wide range of shooters and applications, everything from plinking, target shooting and hunting to law enforcement training and self-defense Brass cases - in addition to Hornady target friendly, non-steel core bullets in a variety of offerings, frontier cartridge features brass cartridge cases and military-grade boxer primers and propellant 24 inches test barrelDetails Series/Collection: Frontier Bullet Style: Full Metal Jacket Caliber/Gauge: 223 Remington Bullet Weight: 55 grain Muzzle Energy: 1282 lb/ft Muzzle Velocity: 3240 fps Case Material: Brass Application: Varmint (Less Than 50 lb), Target/Match, Personal Defense Packaging Quantity: 50/Box Ballistic Coefficient: 0.243 (G1) Sectional Density: 0.157