Got back from the Quigley late Monday eve and all I can say is that it was a great shoot and well conducted. The fellow that had the unfortunate accident is going be fine.   
I was surprised and disappointed to read all the things being written about the shooter and the wrath he has taken not only here but also on other websites.  I'm not trying to start any more discussion on it and am glad that the other thread has morphed to safety.   
But it reminded me when about 5 years ago, a well known west coast BPCR and schuetzen shooter blew his highwall apart at a schuetzen match.  It was done because of a double charge.  This shooter was very experienced but made a mistake and it was written up in the Journal.  Although very unfortunate these things will happen in this sport .  Black powder and smokeless will always be used together as long as our sport remains alive but we must continue to express safety.  Bob Saathoff and going back again next year.