You do have to crimp them in or they don't hold up. I found that out the hard way. I don't know if I've shot regular shells though with snake shot in the other cylinders, vertainly not 357's... usually only carry them when I'm hunting snakes.
"Once you quit hearing sir and ma'am, the rest is soon to follow." - Cormack McCarthy
"Feed me, or feed me to something. I just want to be part of the food chain." -Al Bundy