Update:
Thanks again to Huntbear for the PM and tip. I think I was making this way too hard. You put the gapper in, and screw the barrel down. I think I was torquing it too hard against the gapper. I went up to 0.008, even though the directions read 0.006. Not much of a difference. Guess I was being a vag and was afraid of blowing my hands off. I popped off a few rounds with thick, kevlar-lined leather gloves on and not only did the gun not blow up, but it cycled through all six rounds flawlessly.
Damn, these Dan Wesson revolvers are tack drivers. Even firing double action the grouping is impressive. I think it was said that torquing the barrel between the frame and the front of the shroud produces much more favorable barrel harmonics--now seen on many S&W revolvers.
Anyhow, with it now 'fixed,' I went out and sold the gun for $650--3x+ what I paid for it
