I had this 22 WMR failure about 10 years ago in an old FIE (2 cylinders, 22LR, 22WMR) revolver given to me by my FIL before he passed away.
I forget what the ammo brand was but about the 3rd shot of the 22WMR it blew out the back of the revolver and actually broke a piece of metal off the pistol...