my son was given(from his grandpap) a herter's 22lr revolver from west germany a few years ago. he shot it many, many, many times. he also cleaned it many, many, many times. until the other day. he was shooting the revolver and it was the third or fourth round when all of the sudden he was hit in the forehead. after he was done with the yelling(his ), he noticed that his revolver was missing a back sight. then he noticed the crack in the frame(i pointed the crack in the pictures). he then unloaded the revolver and he got on his knees to find the back sight, which he did.
my son brought the gun to me to show me what he did. i believe he was using 40gr rn in remington( could be federal). he is going to try and find the case. he claims the case was split.
herter's was bought out some time ago and i'm not sure that warranty(which i'm i'm sure that it is long discontinued) isn't worth much of anything. but if he finds the case then i'll tell remington( or federal) about it. i figure i'll just put the revolver in the parts bin, minus the frame.
i'm guessing(i do that alot) that remington(or federal) put a double charge powder into the case. the barrel and the cylinder looks to be untouched, but i don't have a x-ray machine either.