HEVI-Shot HEVI-Shot, HEVI-Bismuth, 20 Gauge 3, Max Dram, 1 1/8 oz, #4 Shot Size, 25Rd Box HS17004 Step up your game when you get into the blind with ammunition that works as hard as you do. HEVI-Shot HEVI-Bismuth Waterfowl is 22 percent denser than steel, which lets you drop a shot size from your go-to steel payload yet deliver the same duck-dropping lethality. Pushed at blistering velocities, the payloads provide performance that fills limits, and they're safe to shoot in modern and classic shotguns.