The G2 Research Radically Invasive Projectile .40 S&W 115-Grain Centerfire Handgun Ammunition features copper hollow-point bullets with 8 trocar-shaped petals that expand on impact. 298 ft.-lb. muzzle energy. 1,080 fps muzzle velocity. G2 Research Radically Invasive Projectile .40 S&W 115-Grain Centerfire Handgun Ammunition - Pistol Shells at Academy Sports