>>64383182
Yep. Usually not a problem, but the ammo was ghetto-rigged by some old Bubba that didn't fully understand what he was doing.
Basically, rather than using long thin leafs of smokeless propellant for the booster, he used pucks of compressed black powder.
When one of these boosters lit off, the rear half the the booster blew off the rather than immediately light off, and that big chunk of black-powder pucks clogged the rear end of the launch tube, leading to a catastrophic pressure spike, rupturing the tube at the weakest point, which was the welded patch.
Weirdly, the fact that the launcher was a POS re-weld might have saved the guy.
Because of the location of the patch welded in the tube, it dumped most of the blast downwards into his arms.
That caused some nasty burns, but it wasn't immediately fatal.
If the launch tube had been just a little bit stronger, the whole thing could have exploded outwards in every direction like a big pipe bomb, decapitating the guy and throwing shrapnel everywhere.