Using the same field-proven, patented shot-forming process that revolutionized nontoxic shotgunning, bismuth nearly duplicates the ballistics and barrel-protecting softness of lead. Though it costs a bit more, bismuth's high performance pays off during the hunting season. Soft pellets expand on impact, transferring energy to the target, not through it. Maximum payloads put more high-energy pellets downrange for devastating results, patterning up to 75% denser than comparable tungsten loads. Testing shows that lead choke constrictions apply the same to bismuth, all the way up past extra full. Bismuth can be used in vintage shotguns compatible with modern ammunition. 10 shells per box.