On a 100 yard target, that thing will do under 0.75" groups all day long, with my 55gr handloads or the 75gr Hornady HPBT handloads. Never over that, even if you try to Angelina Jolie that shiit and curve it into the target, jacked on coffee and Copenhagen. At that distance, it usually bugholes them, stacked up. All day, just screwing around. It maintains that fractional percentile out to 600 with the 75gr loads, out to about 400 with the 55s - they open up after that distance. I don't stretch it out beyond that very often, and the Fall Shoot was a decent time to try it. Fired a sighter at the steel at 500 yards, then switched over to the longer target. I was out of my the 75gr handloads, so I reached into the secret stash of the Black Hills Mk262 for that one.