Hevi-shot's hevi-hammer leads to tighter patterns more knockdown power, and flat-out increases your chance of success in the field.It features 15% high-density bismuth, layered over 85% steel pellets.The bismuth layer is the same shot size as the steel.That small but mighty leading edge of bismuth packs nearly 50% more knockdown power than the steel layer at 40 yards.Application: HuntingGauge: 12 GaugeLength: 3.50"Ounces: 1 1/2 ozShot Size: 4Rounds Per Box: 25Boxes Per Case: 10Hazair: Yes