Federal has brought back the immensely popular Barnes Triple-Shock X. This proven all-copper hollow point groups tightly at long range and delivers consistent, large-diameter expansion. The monolithic design retains nearly 100 percent of its weight on impact to penetrate deep, and its grooved shank minimizes barrel fouling and improves accuracy. One-piece copper construction Deep hollow-point tip Grooved bullet shank improves accuracy Almost 100 percent weight retention Deep penetration and large, consistent expansion Product Specifications Caliber: 223 Remington Bullet Weight: 55 Grain Bullet Type: Barnes Triple-Shock X Bullet Muzzle Velocity: 3,200 fps Muzzle Energy: 1,250 ft-lbs Quantity: 20 Rounds Per Box