Moleman
Can you give us some specs and more info on how you made the expanders. I have been collecting 223 brass every time I go to the range and I have been thinking about trying to make 357 rimless, but not sure on how to expand properly. This would be used in a Mike Bellm chambered T/C 12" 357Max bbl. I can have one of my sons make the expander's as he is in Tool and Die