contender
Ruger Guru
I would think that a skilled person on a lathe could do this.
I too found that my set needed a relief on the edge of the shanks to prevent them from rubbing the frame. A little bit more of a shank would be easy.
I too found that my set needed a relief on the edge of the shanks to prevent them from rubbing the frame. A little bit more of a shank would be easy.