I've got a scope ring that has a mild cross thread, enough to mess up a screw. Will running a die back in that hole usually take the threads back to OK condition? If so, I'll need to find a machine shop or somebody with some dies to clean it up. Thanks.

They are called tap's, depend's on how bad it is. Sometimes they will have a little more slop but still tighten, other times you will have to drill and tap to the next size.

Also, the tap will only be a couple dollars at a larger hardware store, then you have it for the next time. (That is, if you can find it then!)

If you deside to not do it yourself for heavens sake take it to a gunsmith, not your local machine shop. If they are like the machine shops in north Texas they tend to do well whit large pieces like drill pipe, but not small delicate things like scope rings. Just my 2 cents.

Good luck and good shooting,
Eterry

Brownell's carries an oversize tap and screws just to fix stripped scope base holes in receivers. It does not require drilling. They may have one that matches your ring screws.

Thanks, guys, Bob

also, if you can reach the hole from the underside you have a chance at easily reaching the correct threads to start the tap.
just a thought. also, if you have any mechanic friends they might have the correct size tap. or sears.....
woofer

If you do go and buy a tap, buy a good quality one. Preferably one with ground threads. I find that the ones you buy at a hardware store usually cut threads that end up with a sloppy fit. You will probably have to go to a machine tool place anyway since hardware stores usually do not carry the non standard tap sizes that is required for scope mounting.

Hart