MSP,
The post you probably looked at and saw the "new" .357 is actually the same old barrel, just on a different frame. The only thing new is the .22 Hornet barrel I just got from BigBoreFan.
You know, I have had a lot of fun and frustration with this .357 Mag barrel.
The sun is out and shortly I'll try some more loads, trying to get it to shoot to its potential.
The ability to utilize the .360 DW has been icing on a good cake, that has made it even better! Therefore, I understand why you would like to have one of these barrels! I just have to say, sorry, not for sale yet.