SIG Match Grade 223 Remington 77gr Open Tip Match rifle rounds are engineered to excel in today's precision auto-loading platforms as well as bolt-action rifles. Consistent bullet weight retention with minimal velocity variations results from optimized shell case metallurgy with premium primers. Rounds are precision loaded using state-of-the-art, electromechanical monitoring for geometric conformity. Features: Sierra MatchKingA(R) Projectiles Premium Quality Primers Clean Burning Powders Temperature Stable Propellant Mfg: Sig Sauer, Inc.