Possible with a semi auto, since the chamber and barrel would transmit heat better to a chambered round then the magazine and all the safety parts don't really assume cook off. Yeah a round fires, slide racks back and loads next round, next round cooks off, over and over until all rounds are the same temp.
Spooky stuff.
This is the same person that put a loaded firearm in the oven we both know there was a round in the chamber.
And no, in my experience very few hand guns have the "limpwrist" issue.