i recently acquired a used savage model 200 for a great deal. Looked over bore when buying it. everything was clean. Had no scope or rail for the scope. when hope ordered rail and nikon 3-9x40mm for it. got the rail and scope. tried to put on rail and on of the screw holes was stripped. how do i go about this. Not new to gunsmithing but never seen this. can you lead me in the right way. thanks Anthony