Been having to rezero my Diana quite often. I kept thinking it was the extreme temp. we have here. 60 in the morning and over a 100 during the day. Never did understand the left and right adjustment I had to make. Looked at Youtube not to many liked it. Took the Hammer scope and mount off my broken Gammo mounted it yesterday. As long as I don't jerk puts it on target. Over a 100 pellets shot so far. May have to get me a better scope, it doesn't focus very clear.
