Do a google search for "358 BFG", you will pull up the site of one of the main smiths doing this conversion. I believe the parent brass is 300 WSM. Performance with the 225 Accubond is very near the 358 Winchester, none of the true pistol cartridges hold a cnadle to it.
I was considering building one on a Savage action, but with the limit now apparently moving to 1.8" case length there is the opportunity to improve it even more. Right now, ballistically, the 358 BFG is about as good as it gets for Indiana.