H06,
Check out reloadersnest.com they have many different loads for .357. I hunt with a 7.5" Bisley and I shoot a 180gr XTP over 15gr W296 which is pretty hot so you'll want to scale it back at least 10% at first. I'll have to agree with Mark Whiz...it's hard to beat W231 for plinking loads. And oh yes, with the W296 or H110 you'll have to put a pretty aggressive crimp to insure complete burn.