Hey Junebug thanks for the info. I've been doing a lot of research on big boar guns and you hit it must of them say limit you shooting time and slow down. I also think I was just shooting too much. I was shooting about 25 to 35 shots per setting. I guess I just wanted too have it sight in for long shoots. I think I'm gonna limit my shooting to 10 shots with 3 to 5 min between. After all I do reload but it still not a cheap gun to shot so I want every shoot to count. Once again thanks all for the info awesome sight to get info and lessons from experience pepole.