I would try fooling with modfying the stock. I would send it back and search other surces for the correct stock, like E bay, amazon and other places.
Just stick Stock for savage axis 308 in a search engine.
This one is on e bay right now.
Custom Walnut Stock from Boyd’s Stocks- Short Action (308, 243, 7mm-08, etc)- Designed for factory detachable magazine bottom metal- Fits newer Center Feed 4.4” bolt screw spacing- For newer rifles with the Bottom Bolt Release button- Black Polymer tip and grip cap- Laser engraved hand grip designs - Includes Boyd’s screw set I bought this new from Boyds a few years ago but never really used it. The stock has a few minor blemishes near the butt pad. It’s easy to replace the factory plastic Accu-stock with this nice walnut stock. The factory Savage bottom metal for detachable magazine will fit nicely. A new one of these would be $234 + taxes and shipping from Boyds.
Al