That looks like what I'm going to have to do. Just dont really have the extra time. I work on the road and I was going to take off for a week to go shoot prairie dogs. Was going to have a smith friend do all the chambering and load development for me. Just didn't want to ask him to have to build a tool also. He won't take any pay and I feel in debt enough to him.I made one for the M22 I had. It went with the rifle when I sold it to James Phillips.