SIG FMJ consistently offers premium-level performance with every shot especially with their 77-grain 5.56mm ammo. These rounds are powered by the same dependable primers and clean-burning propellants found in the renowned SIG V-Crown defense rounds. The SIG Sauer 5.56 77gr OTM ammo features durable copper-jacketed bullets that remain unyielding upon impact ensuring equivalent point-of-impact recoil and energy. Whether you're practicing or competing with the 77gr 5.56 you can trust that SIG FMJ always measures up.