Steel shot i mainly used in automatic blasting machines.
Migra Stack Load Steel Shot, 12 Gauge, 3, #2/#4, 1 1/4 oz., 25 Rounds - 718943, 12 Gauge Shells at Sportsman's Guide
Cheap 12 Gauge Steel Shot - 2-3/4 Steel Shot Target shells - 1 oz
50 Pounds Steel Shot #4 (3.3 mm)-Free Shipping Cheap Weight
Winchester Super X Xpert High Velocity Steel 12 Gauge Ammo 3 2 Shot 25 Round Box, WEX1232
Winchester Blind Side Ammunition - 12 Gauge - 3 - 1 3/8 Oz. BB - Hex Steel Shot - 25 Rounds
HEVI-Shot Steel 20 Gauge 2 Shot - Guns N Gear
Migra Steel Shot 20 Gauge 3in #2/4 1oz Waterfowl Shotshells - 25 Rounds
Winchester Xpert Hi-Velocity Steel 12 Gauge Shotshells - 25 Rounds
Winchester Xpert Upland Steel 12 Ga 2 3/4 1 Oz Case 250 Rd
How Effective is Steel Shot? Comparing Lead to Steel
Stainless Steel Shot & Grit - SS Shot, Blast Media
S3-Steel - Apex Ammunition
Special Item-Steel Shot #4 (3.33 mm)-2200 pound drum - RotoMetals
Steel Shot
Fiocchi Flyway Speed sTEAL 12ga 2 3/4 1 1/8oz #6 Steel Shot