Mackay, got a round count to the failure on that 442? A rough guesstimate would be good enough, I wonder about the longevity of the aluminum J's.
This is PURELY a guess, but maybe 2,000 on the high end. I have shot probably 500 rounds through it in the last year alone though, and while it is out of commission temporarily, I honestly think it is a minor issue.
The problem is that it is my BUG gun for work, and if I need a BUG, things have gone horribly wrong, and I need it to be ultra reliable.
I am familiar with the operation of the internal workings of S&W guns, but I also know my limitations. I would feel better if the entire gun was gone through by someone who does it every day.
The fact is that unless there is some catastrophic issue, I don't think the revolver is even close to seeing the end of its service life.