HEVI-Shot Hs29213 HEVI-Hammer Upland 20 Gauge 3" 1 Oz 1325 Fps Steel, Bismuth 3 Shot 25 Bx/10 Cs HEVI-Hammer Has 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. Gauge: 20 Gauge Length: 3" Ounces: 1 Oz Shot Size: 3 Muzzle Velocity: 1325 Fps Rounds Per Box: 25 Boxes Per Case: 10 Shot Material: Steel, Bismuth Application: Hunting