as Chief38 says above, this ammo can be very hot...right from the factory.

With a J frame (or actually I suppose any revolver) could the recoil from possibly extra hot ammo slightly unseat another round in the cylinder just enough for a loss of initial pressure at time of ignition?

I have read of handloaders experiencing this "unseating" but usually their problem seems to end up with cylinder lockup, not squibs, but maybe just a thought.

Does the spent case crimp look any different than the rounds fired normally?

__________________
Charlie B
SWCA#3083, SWHF#570