If it were mine (and make no mistake, I like to hunt with rifles so they need to be scoped) I wouldn't drill and tap it. Any "good" smith who knows his stuff can do shop made mounts that can take Talley or other rings. The bases are sweated on with solder. While it needs to be done right to be "bullet-proof" it is removeable, although getting the last of the solder out of the stippling on the front ring might be a bear. The front base can also go on the reinforce.

If you care to email me at foveauxsailor@gmail.com I can send you photos of such bases on two of my rifles.

Cheers

Foster