I have the 454 Casull SRH which also shoots 45 Colts. I load mild to wild and never fire 45 Colts for this very reason. A hot 454 load being shot after 45 Colts are not unknown to blow up due to the pressures created between the longer case wall and the bathtub ring left by the shoter brass. I've never heard of a 357 blowup, but it is sure possible.
"I load mild to wild and never fire 45 Colts for this very reason."
Good policy. You can always load revolver ammo down in the full size case. A little charge of Bullseye under a cheap cast bullet can get a lot of shooting done real cheap.
"I've never heard of a 357 blowup, but it is sure possible."
Sure hate to be the first on record to blow up a nice L-Frame Smith like hers. I know it probably would not happen, but you can bet there is excessive pressure in those chambers. If that is one of those 7 shot models, the chamber walls would be even thinner. At the very least, when a gun explodes, it's destroyed. At worst, people get killed. A pretty serious consequence for negligence.