i have one on my hw100, was on bsa ultra xl before that.they are also side focus. brilliant scopes for the money, the side focus works great as well, the only down side is if you are doing short range shooting , it wont focus closer than 15 yards and thats on min mag. nice and clear but the mil dot is a bit thick . the turrets feel a fluffy when zeroing but havnt been a problem . a good alternative is the quarry king 6-24x50 ao which i have on my rm8 and that does do full 24x mag at 15 yards .