Reformulated in 2018, the 55gr Terminal Shock round now packs a bigger punch with greater velocities and energy. The .223 55 grain round is the ultimate ammunition for hunting deer or wild boar sized animals, and the ultimate .223 round for self defense. Safe to use in both 5.56 and .223 Remington chambers, this bullet is what put DRT on the map. A non lead projectile, this bullet features a hollowpoint flatbased (HPFB) design. Accurate out to 350 yards and works well in a 1:7, 1:8, and 1:9 twist rate barrels. You can expect wound cavities of 3-5 in diameter with 14-16 of penetration. It is reliable, accurate, has reduced ricochet, and is lethal ammunition. Please read our FAQ section before ordering.