HEVI-Shot goes ultradense with HEVI-18 TSS Turkey, bringing best in class performance to turkey hunters. HEVI-18 TSS 18 g/cc density pellets provide high pellet counts and long-range lethality. They achieve incredibly tight patterns thanks to a unique, friction-free, sealed-in-the-shell spherical buffer. If you haven’t shot a turkey with ultra-high-density HEVI-18 tungsten shot, you should try it just for the experience, which you have to see to believe.