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.