Thanks Pete I do understand what you are saying. I do have the book. And please understand I have mills (several including cnc) I have 3 lathes I have a surface grinder,And a sharper etc,etc,And that I love guns (mainely rifles) and at 73 years old. I want something to kill time. Smile and keep my mind thinking.Before it gets completely senile.And I just might build a 22LR double gun. If for no other reason. Everything else I see are to hunt elephants etc, and after 22 years in the military I have seen all the blood I ever want to see.So it is nothing to do with hunting. But just for fun and to see if I can do it.At this point the only thing I was concerned with was using something That could be important to someone. Thanks again. Whitey