Morning Guys, and happy new year!

I have an action that has a scope base screw stripped out, so I was going to convert it over to use 8-40 screws. I was wondering if anyone had info on drill bit size to use for the action, but also to enlarge the hole in the bases, both for the larger shank of the screw and the larger diameter of the head.

Here are the screws and tap I found on Midway:

http://www.midwayusa.com/viewProduct...tNumber=110607

http://www.midwayusa.com/viewProduct...tNumber=233454

Thanks!

Adam