At the range using a Mossberg 590 tactical pump shotgun. Smooth bore, Improved cylinder 20" barrel, calm 70 degree day at 52 yards delivered from the off hand (standing unsupported position to us old soldiers), They held about a 4.5 inch group. So MY gun, My abilities, ( 75 yr.old man with arthritis), and MY purposes, I couldn't be happier. Anything I hit within 4.5 inches of the aiming point will know they should have been somewhere else. I've been using Miwall ammo for several years, various center fire rifle and pistol rounds. All have perfomed as expected and their service has been honest trustworthy, and prompt.