John357
Member
Remember that the ONLY reason for .357 Magnum cases being longer is so that ammo cannot be fired in a firearm chambered for .38 Special as those guns may not be safe to shoot with such hot loads. Any load that you would put in .357 brass would also work in the .010" shorter .38 Special brass.
Ed
I'm totally new to reloading and this forum, so this is not the voice of experience. I'm getting my guidance from Lyman's 49th edition and on p. 356, it says "Never use 357 Magnum Loads in 38 Special cases as very dangerous pressure will result."
They might be wrong, but there's a data point.