A friend recently got one, to put on a high end air rifle. Making long shots with pellets requires exact range info. I have only held it a few minutes and ranged with it. Rangefinder in this very limited experience seemed about average. I think it would be easier to use mounted on a rifle as that is steadier than hand holding it. Was talking to him on the phone today, and he has mounted and used it. Sounds like it is quite adequate for his uses. If I get more hands on time with it, I will report back. If I get a chance will try some long range rangefinding that is more like what you might use on coyotes.