A friend brought his Super Blackhawk to me. The previous owner had installed a hideous scope mount and drilled out the original sight mounting hole to tap it to 8-40. The original hole was 6-48. I drilled out an 8-40 plug screw to thread it to 6-48 but the remaining wall thickness is scary thin. One idea I had was to secure the 8-40 plug in place with green loctite before tapping it but I have concerns about that not holding up. Another idea was to drill the 8-40 hole out to 10-32 and securing a 10-32 plug in place with red loctite after tapping it to 6-48. Physically I know that will work but I have concerns about weakening the top strap. There are the ears of the sight mounting slot on either side of the sight mounting hole so maybe there is plenty of metal remaining even after tapping to 10-32.
Has anyone been there? Any ideas or suggestions?