Rifling cutter dimensions, help ideas

[Mike8623]

Well I guess I start shooting in the dark. Today I start milling and cutting my test pieces for a cutter. Once I get 4-5 starter pieces I'll start laying out what I think l will work then start shaping. Once I get what I think will work along with the cutter body I'll move on to hss or carbide.

This has to have been done before and I really dont want to reinvent the wheel.

 

[Mike8623]

Well got the 1st attempt done and realized some mistakes and things to do first on the next one....will do that tomorrow and think on it until then