CraigC, I think there are at least two totally-distinct types of wear in terms of a revolver (there may be others, such as environmental wear or damage, that we can leave out): wear due to the stress of ignition/internal ballistics and wear due to cycling of the action. I think mcb is just saying that, as to the latter, S&W's seems to be at least as durable/long-lived as the Rugers. As to the former, that's perhaps something where, below a given threshhold, they are all extremely durable, but above that threshhold the Rugers have an advantage - and above that, the Ruger will hold together when S&W's will catastrophically disassemble. Fair?