Consistency in every cartridge the frontier line is a co-development between Hornady and Lake City to create a mass-produced round with the consistency and quality that Hornady is renowned for. State-of-the-industry loading techniques and quality control procedures ensure the reliability of every Frontier Cartridge round. 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. In addition to Hornady bullets in a variety of offerings, Frontier Cartridge features brass cartridge cases and military-grade boxer primers and propellant.Specifications:Manufacturer: HornadyModel Number: FR310Ammo Bullet Type: Hollow Point Boat Tail MatchKingAmmo Casing Type: BrassAmmo Bullet Weight: 68 grainAmmo Round Count: 20/BoxCaliber Multi: 5.56x45mm NATOMuzzle Energy: 1323 lb/ftMuzzle Velocity: 2690 fpsApplication: Varmint (Less Than 50 lb), Target, Match, Personal DefenseSeries/Collection: FrontierBallistic Coefficient: 0.355 (G1)Sectional Density: 0.194