Ok guys i make a stand for my spud gun from an old teloscope stand i had. well, i was testing it out and i dont know what happend but the whole spud gun when i fired it jumped up like 4 inches and the back cap flew off (keep in mind the end cap was tightly on)! the back cap hit me in my chest and it gave me this bloody ass bruise on me! What happend?!?!?!?EVERYONE PLEASE BE CAREFUL IT WOULD REALLY SUCK IF THE CAP HIT YOU IN THE THROAT!!
Did it strip the threads or did the whole adaptor/cap assembly come off together? It does sound like a weak bond though. Try scuffing the pieces to be glued, insert the pices and give it about a 1/4 twist. Be sure to let the bond cure (overnight is usually good enough).. You may want to get about 20 feet or so of wire and remote detonate your gun to be on the safe side.
Weird. I honestly don't know. Must have been the fates playing a joke on you. They did that to me today. Not only did my car fail emissions rather spectacularily, but it blew a coolent hose later on....