I bought my (Security Six) twenty years ago, and it is still going
strong. I have no idea how many rounds have been through it, but the number would have a bunch of zeros in it!
A year ago, I had a smith go through it and give it a thorough inspection, and told him that if it needed anything, to just go ahead and do it. When I went back to pick it up, he told me that he had taken it apart and cleaned everything up, but nothing was needed - nothing at all.
This gun has fired multiple thousands of rounds, some of which were rather stout hand loads - and it still shows no signs of being tired. It shoots to point of aim, and groups very nicely.
The only time it ever failed to send a round downrange, was when I had a box of cheap "whitebox" target ammo from a major mfr. Several defective rounds refused to ignite. My shooting buddy with his Colt Python tried some of this batch, and had the same result - just defective ammo.
I have others, for concealed carry, or just because they appealed to me one day when I was in the mood to spend some money, but my Security Six is the one I always keep ready to go when at home. Sturdy, reliable, accurate, entirely worthy of every bit of the confidence I place in it.
-Don-