I've got Monarchs on a couple of seriously hard kicking (500NE) rifles and there is absolutely no possible way your Ultimate kicks anywhere near as hard as they do. Never had an issue with scope blowups from them. No problems on my "make a grown man cry" TC with the .300WM barrel on it either. I just can't figure out what you are doing to blow scopes up on those Ultimates as they should be WAY under the recoil extremes that those Leupys should be able to withstand.