Where do you ge to find the different barrel threads, diameter, thread pitch, and thread type for the different rifle manufactures and models?

I'm working on a BSA model U9. Are the threads vee or square? Standard, Metric, or British Witworth? I would like to rebarrel this rifle but want to make sure I have the right tooling to do it.


Thanks for any help you might have.


PS I really would like a source I could go to.

All of the above !! My old " NRA Gunsmithing Guide" has many of them.

BD; here is what I show 1.122 dia x 12 tpi v with a .980" long shank. Pull the barrel and take your own measurements has always worked.

last section of "Bolt Action rifles" by Frank deHaas has many tenon/thread diagrams.