I've used the Burris standard style reversible 2-piece bases with a set of Med Signature rings on a model 111 with great results. It has the windage adjustment and unlike every other type of ring out there, the Sig. rings actually allow you to take full advantage of the windage adjustment with no chance of bending or binding the scope tube. The windage adjustment in the base gives you much finer adjustments than the offset bushings allow for as well. They'll be plenty strong for the 7mag recoil.