Re: can anyone tell me what happened?
was it a Glock you shot it from? if so, that's normal, you need a Redding GRX push thru die.
or a new barrel... like a Lone Wolf, Bar sto, etc...
look at the primer, if it has a rectangular stamp, it's likely fired from a Glock
"Loud noises don't end gunfights.... well placed shots do."