I notice I tend to shoot tighter groups out past 20yds, 20 is pretty tight, 30 is less, but 40/50 esp 50 gets tighter, I think its due to increased concentration. I shot some 2" groups at 50. As long as I'm going to hit the vitals at a relative distance, I really don't care how tight the groups are. If im shooting 9" groups at 50 I may rethink that 60 or 70yd shot, but good groups to me is would you have killed the animal? and not probably killed.....heart/double lung vitals.