Sig Sauer Ammo 5.56 NATO Elite Match Grade 77gr Open Tip Match 20/Box E556M4-20

5.56X45mm OTM (open-tip match), 77-grain cartridge. 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.