I just started using reflex sights on my handguns due to my age and eyes. I think some of the groups above are extraordinary. Not what you should expect. I am using one on a 454 Raging Bull and have been very happy with 2-3" groups at 50 yards off sand bags. You have to get used to the sight though, and adjust the brightness so you get the smallest, yet bright enough dot for the light conditions. More you shoot with it, the better you will get. Even shooting from a benchers has its challenges, so practice is good. Good luck.