Box of 5 shells of .410 gauge ammunition. 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. Hevi-Shot has achieve incredibly tight patterns thanks to their unique, friction-free, sealed-in-the-shell spherical buffer.