-Delivering a combination of accuracy and penetration, Gamo lethal pellets are constructed with a strong polymer skirt and a tough copper tip. They can acquire up to 38 percent better grouping than a standard lead pellet, thanks to the stable trajectory and its longer polymer skirt whilst the copper ensures a quick and effective one-shot kill.The dome tip and the two body design enable this pellet to penetrate a metal plate up to 0.15 cm thickness.