If the pad fits the gun and you don't have to sand it- and the only problem is that the screw holes are off, you might be able to fill in the old screw holes with dowels and then redrill new screw holes for the new pad. Make sure if you redrill new screw holes that you aim the drill down so that you don't drill through the side of the buttstock. So if the pad fits the buttstock perfectly I would just redrill the screw holes. Good luck.