You can try DEVCON as it supposed to be machineable.
Hello,
I have a Savage 99 that I purchased used, with the scope mount holes not properly lined up. Can the holes be filled in and new holes drilled & tapped.
Thanks.
If not too far off the holes can be re-drilled and tapped to 8-40. If they are too far off they can be plugged and redrilled in such a way that the repair is nearly invisible; comments above notwithstanding. I'm sure there are gunsmiths in the Winnipeg area capable of doing this correctly. Regards, Bill.