Quote Originally Posted by lifeon2 View Post
I believe buffalo bore makes 357 that meets the energy requirements even from a 4" barrel but to be on the safe side 41 and 44 mag as well as 45 colt 454 and on up is your best bet for legal energy requirements.
If you have a link to published ballistics, I'd like to see them because I don't believe its possible to do that with a 4" .357 Magnum.