I had the same results as Owen Sparks, post # 38.
Never tried that load at 15 yds, but it did keyhole at 25. I don't remember the charge, but the bullet wss Speer 148 HBWC loaded backwards.
At that time, some folks played around with Corbin swaging dies and lead rope to produce kinda, sorta expansion at short barrel revolver velocities.
A couple of intrepid souls carried steel frame 38s with cylinder chambers bored out to accept .357 ammo. Don't know how long they lasted, but the resoning was if they held together for a cylinder full of ammo, that'd be enough.
Thankfully we now have reliable ammunition. Nothing can replace shot placement though.
salty