I have two of them, and older 610 classic which is the -2 model with the non-fluted cylinder and 6.5" barrel. I have a newer -3 model that is the same as the -2 model except now it has a fluted cylinder and the same 6.5" barrel. The -2 model has probably in the neighborhood of 100,000 rounds through it. Initially I bought 500 pieces of 10 mm brass for it which I wore out over a 5-6 year period, then I had some trigger work done on it which smoothed up the double action to about 6 pounds. It is my main IPSC/USPSA/ICORE revolver now that helped me win 2 other S&W's over the years at 2 consecutive IRC's (686+ and a 657).
I don't think I have ever put a single factory round through my -2 model and never intend to do the same with the new -3 model. I use RIMZ moon clips (polymer) and load 140 gr round nosed bullets into Winchester 40 S&W brass cases. I chose to run the RIMZ clips with my 610 after being burned one too many times with bent steel moons that would not advance when shooting matches. I can bend and twist the polymer ones without worrying that they will not work (unlike the steel moons). PM me if you have any other questions.