Perfectly formed rounds balls of pure lead are heavier than pellets and ideal situations requiring lower velocity but high terminal energy. The GAMO Round pellets are perfect for metallic targets. 

The GAMO Lethal pellet can acquire up to 38% better grouping than a standard lead pellet*, thanks to the stable trajectory and its longer polymer skirt. The dome tip and the two body design enable this pellet to penetrate a metal plate up to 0,15 cm (0,06 in) thickness. Copper retains 100% of its weight after expansion, retaining velocity/energy