First post guys. long time lurker.
Range rifle had a KB. Customer was using a factory new box of HPR .223 ammunition. Minor wounds to the top of his hand, nearest the thumb. Rifle was running a vert grip and cust. was holding it broom handle fashion.
At the suggestion of a coworker who frequents this place I'm offering up the pictures for a possible analysis of what might have happened.
I forgot to get pictures of the case, but it was split in a similar fashion to the barrel, down to about the portion where a belt would sit on most magnum casings. Nearest we can tell from the evidence is that the round was overcharged. We've all but ruled out the possibility of a squib. Customer was relatively experienced with firearms and didn't say he heard any phut's or puff's and the gun cycled normally on the previous round.
The most interesting part was there was no evidence of damage anywhere else but the barrel. Bolt, receiver, even the DD free float quad rail were untouched. Looks like the fragmentation was just enough to break skin but not enough to damage the aluminum on the HG. Also, we did notice some copper ingrained in the portions where the split occurred on both sides of the split. I'm guessing the round deviated sideways, shredding and destroying itself in process of rubbing copper into the break.
2 more low quality pictures to follow. Sorry, I can not get more photos, as the rifle was shipped back to DD the following day.
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