I was shopping for scope with more power and a good retical for load and rifle testing, but not too bulky for hunting. I ran across a Nikon PH 3-12x40, which was not on my list, but I was impressed and bought it, mounted it in Warne medium QD rings. It worked well on a few rifles. Then I moved it to another, a Steyr PH, and the bolt handle will not quite clear the power ring. I am going to try it on a few more rifles this weekend, but I just wondered if any of you had a similar experience, or if other medium rings were high enough.