The most appropriately named product on the market. Tighter patterns, higher speeds and more knockdown power. In short, it increases your chance of success in the field. HEVI-Hammer Upland has 15% high density bismuth, layered over 85% steel pellets. That small but mighty leading edge of bismuth packs nearly 50% more knockdown power than the steel layer at 40 yards. With our 9.6 g/cc Bismuth, you can generally shoot one shot size smaller than steel for the same lethality. In our HEVI-Hammer, both the bismuth and steel are the same size! The energy of the Bismuth layer truly hits like a HAMMER! HEVI-Hammer Upland is a superior non-toxic shotshell for areas where lead is prohibited or for environmental conscious hunters. We are offering loads for large, medium, and smaller upland game birds.