A reloader not watching what he is doing/not knowing that "Some powder" is not properly interchangeable with 24.5 grains, as well as stress fractures in the barrel/chamber, and barrel obstructions.
You have not had fun until you are on a range, you watch a guy fire a .357 Magnum and get to watch everything from the forcing cone forward go all to ----. For the record, the only thing damaged on his person was the color of his underwear, but they were damaged to the point of being too far gone to salvage!
