As I understand all main stream ammunition manufacturers load their 357 Magnum to lower power levels than the original load of a 158 grain LSWC @ 1525 fps. The boutique loaders like Buffalo Bore, and Underwood probably have a load close to that range.
I've always thought of getting a box of it just to see what the "old" load was like. For any practical purpose needing more power than what I can commonly get in 357 Magnum, I'll just use my 44 Magnum!
Cheapshooter's rules of gun ownership #1: NEVER SELL OR TRADE ANYTHING!