My guess is that he was using depleted uranium bullets and one of them just went critical! Well, that's as good a guess as any.
BTW, in addition to two sets of eye protection, I'd suggest asbestos long underwear and kevlar gloves when you run another round in behind a stuck bullet in that HK!!
Shoot to kill; they'll stop when they're dead!
[This message has been edited by WalterGAII (edited November 13, 1999).]