HELP !!! I have modified some 32-20 Win. cases to the .310 specs. Now I am looking for some 100-125 grain cast bullets to stick in them. The bore is virgin .321 and the chamber is original Greener. If I can't make this little dude shoot I am going to make a 32-40 out of it. I have three others in various calibers. They wrote the book on accuracy and fun to shoot. That is why I would like to keep this one original.