Nope, those are standard High rings. No need to adjust your hold or head alignment. If you close your eyes and shoulder it the scope is dead on when you open your eyes. Sighting that rifle, with any barrel of those three, is as easy as my Remington 700. I have no problem getting my thumb between the scope and the hammer to cock it either. In fact, the Simmons scope on the 45-70 is the easiest of the three to cock.