I've been shooting these lately: 148 grain DEWC, 38 Special brass, 7.0 grains of WSF powder, and whatever small primer is handy. Here's the important part: OAL = 1.36" They will not chamber in a .38 Special because the wide meplats (noses) are too long.
This is not a max load for a .357, but it's a lot hotter than a .38 +P.
If you don't have WSF but you do have Herco, you can substitute that.
"The only way to stop a bad guy with a gun is with a good guy with a gun"