I have had my 629 fatally jam due to limp wristing by a friend, it was cheap factory reload ammo, and the bullet slid forward in it's case and jammed the revolver to the point it would not fire, would not rotate at all, could not open cylinder, had to push the bullet into the case for it to rotate, complete catastrophic failure to function.

This type of failure turned the revolver into a club.

I love revolvers, but prefer to carry autos, for more capacity, and for the ease of correcting malfunctions, just replace mag and rack.