Get a set of steel, Millett Angle-Loc, windage adjustable rings. They make them in both 1" and 30mm. They make life easy because the charger bridge was never intended as a central scope mounting reference point and you can centralize the scope on zero. This is real important if you want the full run of deflection, especially if you're using an inexpensive scope that doesn't have allot of adjustment to start with. You can get them at Brownells.