I know nothing first hand about these things, but I was curious and looking into them a while back, and one thing I remember concerns weight and balance.
Since the .357 has smaller holes in the cylinder and barrel it weighs more than a .45 with the same barrel length. I read more than once where people recommended to limit the barrel length to 4 5/8" or 4 3/4" with the .357 because of weight and balance.