Webhobbit
Um, I don't remember. Maybe S&W said, in a manual I have?
That is, I think they did. For years and years, I'd always understood that it was okay to dry-fire all newer centerfire guns. Then, when I got this gun a couple of years back, I learned I shouldn't dry-fire it. So, I don't.
Now, writing this today, I don't recall for certain that the info was from S&W. But, I'm the kind of guy who doesn't come off a solidly held understanding without something substantial to pull me off it. My vague recollection is that I read it in S&W literature on the pistol.
But, hey, I'm not going to dig out the manual to find out what it says. I know I had a good reason for programming myself not to dry-fire this one when I bought it.
And I'm certainly not trying to tell anyone else what to do. It's a free country. Dry-fire anything you want to dry-fire.