If money is no object then look at EAW. If you google new england custom guns they sell them.
They make several mounts but these have a front ring that you start at 90 degrees to the rifle and then swing the scope into to a locking back ring.
You can adjust the elevation at the front ring with two screws that are lockable. The rear mount has screws that let you adjust the windage and they just move the scope in the arc of the front mount so no binding at all. They are designed so that you can put your scope on the rifle with the elevation and windage centered. Then center the scope so that you retain the full movement of your turrets.
Once you set them and lock them you can take the scope off and put it on and it will zero very reliably. A full set of bases and rings is about $400. You can save $100 by getting IOR rings which are a Hungarian EAW clone.
