You have a few options still available for that rifle. Weaver still makes a side mount base and several mounts that the rings attach too while the mount attaches too the base. I have several of those old bases but don't remember whether the screw spacing fits the Savage. Believe the newer 340 Series E rifle the base did fit that screw spacing. Would imagine that these mounts and bases could easily be modified too fit receiver and scope. Occasionally old mounts show up on eBay for these old rifles.