Twenty, or so years ago, there was a revolver writer for a gun magazine, named Skeeter, and I can't think of his last name. But he was the sherrif of, (no fooling) Deaf Smith County, Texas.
He advocated loading 357 mag ammo with 38 special brass, for the following reason. Many revolvers, including a Colt Python and a S & W 357 I have, will not take a popular cast bullet, in 357 brass, crimped in the proper crimping groove. The cartridge length is too long, so they have to be crimped on the shoulder. With 38 special brass, however, the bullet can be crimped in it's proper groove.
At he time I was shooting a Ruger that would take the long bullets, and a S & W that would not take the long ammo. So I loaded many full blown loads in 38 brass.
I don't think I have any of the old magazines around with his writings. I do, however, have my own records, based on his information, showing the loads I used. But I will cover my fanny, just like the loading companies do, and not give that information out here.