Sig Sauer Elite Performace 223 Remington 77gr OTM Centerfire Rifle Ammo - 20 Rounds - 223 Rem OTM (open-tip match), 77-grain cartrige. This ammo features a Sierra MatchKing boat-tail projectile, dependable primers, brass case, and clean-burning propellants for repeatable, unrivaled accuracy. Great for competition or target practice when ultimate accuracy matters. 20 round boxes.