Brenneke slug ammunition is produced with high quality materials and as undergoes strict quality control to ensure their customers receive ammunition in excellent condition."Shotgun sabots with a punch!"A tremendous slug for deer-sized game, The K.O. Sabot Slug creates a 5-shot group under 2-1/2" at 55 yards. It's also safe to use with rifles or smoothbore shotguns.In order to have a safe shoot, Brenneke recommends the following Safety Tips:Only use Brenneke slugs in modern shotguns known to be in good condition.Make sure you use the proper length cartridge (2 3/4 inch or 3 inch) your gun is designed for.Make certain you know if you are shooting a rifled or smoothbore barrel, and using the proper slug. Check with the gun's manufacturer if necessary.When using a screw-in choke, make sure it is tightened securely. Brenneke recommends chokes no tighter than cylinder bore or improved cylinder when shooting their slugs.Maximum range of a slug is up to 2000 yards! Be certain of what's behind your target.