According to him, it did. So he bought a NIB 22/45 from a local (to him) gun store. Took it out to the range to put some rounds (not sure what kind) through it. He put about 20 rounds through it, and noticed that it seemed abnormally loud for a .22. He also mentioned to me that it was throwing brass straight back in his face, which he thought was odd. He also mentioned that the gun was grouping like absolute dog shit. Anyways, I guess after 20 or so rounds, the gun blew up. Apparently the top of the chamber/receiver was blown apart, as well as the polymer grip, and some other shit. He found that the casing was ripped to pieces and part of it was still stuck in the chamber. He failed to take pics of it before taking it back to the gun shop for them to assess/fix the situation. At this point, it sounds like he's going to wait to hear back from Ruger. My theory is that the gun was firing out of battery for some reason, though I've never messed with a Mark III to see how they work, exactly. Thoughts on what would cause this? P.S. His finger hurts, a lot.