Warne Winchester Model 70 Pre 64 Magnum Maxima Base Features Steel is the reason to choose this base over a lighter alternative. A pre-64 Winchester Model 70 chambered in a magnum cartridge delivers recoil that punishes a mounting system on every shot and a fabricated steel base resists the flexing and thread wear that eventually loosen a lesser mount and shift a rifle s zero without warning. The Maxima design follows the Weaver pattern which has endured because its recoil slot and clamping arrangement transfer that force into the receiver rather than into the ring screws alone and because rings for it are available from nearly every maker at every height. Warne s position is straightforward: you would not fit imitation parts to a vehicle your family rides in and a mounting system that fails at the wrong moment costs a hunt or worse. For the hunter carrying a classic magnum Model 70 into serious country that reliability is the entire specification. Fitment is specific rather than universal which is what makes it correct. This unit is made for the pre-64 Model 70 magnum receiver with .440 rear hole spacing a detail that separates it from the standard-action pattern and that a buyer should confirm against their own rifle before ordering. The two-piece layout leaves the loading port open between the bases which matters on a controlled-round-feed action that many owners still top off by hand and it lets the shooter position the front and rear rings independently for correct eye relief across different scope tube lengths. Both bases ship together in a black matte finish that sits quietly alongside the blued steel and walnut of an original rifle rather than clashing with it and the 0 MOA elevation keeps a hunting scope s adjustment centered. For collectors and hunters putting glass on a pre-64 magnum Model 70 this Warne Maxima steel base set is available for sale at GrabAGun. Warne Winchester Model 70 Pre 64 Magnum Maxima 2-Piece Steel Base Specifications Brand: Warne Model: Winchester Model 70 Pre 64 Magnum Maxima 2-Piece Steel Base Style: Weaver Mount Type: Weaver Style Elevation: 0 MOA Fits: Winchester Model 70 Pre 64 Magnum .440 Rear Hole Space Rings Required: Weaver Style Material: Steel Finish: Black Matte Number of Bases: 2 Available At: GrabAGun