You're probably right.
I said it was a guess, and that there's no way for me to know.
The gun was not totally disabled, it would just misfire sometimes. I suspect a transfer bar issue (one of the parts replaced), possibly among other things. They replaced the pawl, cylinder stop and loading gate too.
I remember reading about a torture test involving a Blackhawk, and I think it was well into six figures before total failure. Some insane number too - not just barely 100,000. So again, I believe you - certainly for total failure.