Wish this wasn't being titled like this all over the net...
It has nothing to do with a conversions fault.
This was almost certainly caused by 2 bullets being loaded into the case...a double charge maybe..but his load was very light so even a double charge (of his load) probly wouldn't have done this.
I can't beleve how many people don't know that the "44" designation is NOT the same as the 44 (.429) of today...all of these Remingtons ARE 45's...NOT 44's
I just had a guy bring me a bunch of rounds (to reload) that he had been firing through his Rem conversion...when I looked at the cases they were all expanded clear out and I looked at the headstamp and they were 44mags!!!!!!!!!
Guess the "44" on the barrel confused him too..lol Good thing all that pressure just blew by or he could have had troubles.