Precision Layering for ultimate performance. This unique blend of bismuth (15%) layered atop steel significantly extends your effective range by increasing density, leading to tighter patterns and improved shot groupings. Introducing the latest addition, the 12 Gauge, 3-1/2 inches variant, loaded with 1-1/8 oz of #2, #4, or BB shot, HEVI-Hammer continues its dedication to delivering exceptional performance.