(Sorry it took so long...)
No, I've not fired a G27. G23, yes. The lightweight revolver has a `sharper' recoil; it's not heavier, but you can tell the gun is accelerating more quickly. Of course, I have no way of measuring this, but found myself remembering the sensations I'd get when shooting different long bows.
[This didn't make much sense the way I first wrote it...]
Generally speaking, I feel that light bullets are better suited for light revolvers. For example, [in 38/357,] I wouldn't think of launching 180gr bullets out of a mid-weight revolver - let alone something like a J frame. In the case of the J Fame, I think 125gr is about the most I'd go. (Except for gallery loads: light loads under 148gr WCs, then.) And I don't think that the lightweight guns are intended to take a lot of pounding. I could be wrong, but I smply can't imagine that these can be as sturdy and durable as a hefty Ruger.
[For this 44SPL] S&W recommends nothing heavier that 200gr bullets. The Winchester Silvertips come in at that weight and that's what I keep in it. I've loaded up some light charge 200gr SWCs for practice, and that little revolver performs just fine with them. No problems to report.
Personally, I think 44SPL is an ideal self defense round. A hammerless revolver that can deliver multiple shots while still in your pocket makes it about ideal.
I fitted some Pacymayer Compacs to mine. It makes it a little larger (Well, it started out much larger than my J frame (which my wife decided wanted to travel around with her.) but it points much better and allows me to deliver multiple rounds more accurately.
