The first all-steel shotshell from HEVI-Shot, HEVI-Steel flies at 1500 fps, compared to competing fast steel loads, which run at 1450 fps. (12 Gauge, 3 inches, 1-1/4 oz) This increase in speed delivers 9% more energy at 30 yd and 8% more energy at 40 yd. In short, you get more knockdown power and fewer crippled birds. Clean burning powder and precision manufactured premium steel shot loaded to Environ-Metal, Inc.'s exacting loading standards make HEVI-Steel the most lethal steel shotshell available. HEVI-Shot premium HEVI-Steel shells in standard 25 round boxes. HEVI-Shot nontoxic steel loads give you larger payloads at higher velocities than other steel shotshells.