Re: Barrel shank threads
I have to try digging up the title, but it's called something like "The Bolt Action Rifle" and it's printed in about 1972 or so. It has a picture of the (then) new Ruger M77 on the cover. Paperback, blue background, and the back cover has a Webby Mark V on it.
There's an appendix in the back that lists barrel shank dimensions and threads for everything in the book that's covered, also action wrench prints too.
I left it at my girlfriend's parents 2 weeks ago, I have to go get it. But that book has what you need in it.