I had one experience with .44mag ammo purchased at a gun show. One shot in my S&W 629 with 4 inch barrel and the other 5 rounds unseated the bullets from the brass. They were poking out the front edge of the cylinder. I pressed them back flush and unloaded the unexpended rounds. The whole remaining container was run through my Lee Precision Factory Roll Crimp die. The vendor used a taper crimp as he was firing them from a Desert Eagle. You can't do that with hot revolver rounds.
Wow. I have had em and they just plain make me nervous.
Still, the damn thing has to be cleared. So after my first squib, I made a squib tool that keeps my hand out of the line of fire and and another that holds the breach open to mitigate against misfire in the open.
If the round fires and goes through the barrel it will fling the tool out of my hand and hopefully at most I will suffer a nasty cut.
If it goes off in an open breach well... it’s going to what it’s going to do and then it’s “Oh well”.
LOL