other than with ambush conditions, braced firing position, using cover. him holding still, erect, fully exposed, with ear and eye protection, I've always been easily able to reliably hit a 12"x 18" mark under such conditions. All that's required is note card groups at 25m, That's easy, from sitting braced. There's no reason to attempt such accuracy from realistic combat positions, cause it's just going to happen. It's just a waste of ammo and range time. I"ve been able to do such things after not even touching a gun for years on end. That's how much taking a braced firing position gains you. Ditto having ear and eye protection. You'll flinch a LOT more without such gear and there's no reason to not have it, other than sheer laziness.