Shot half a box of Blazer .44 mag ammo in a 329 Night Guard today and all functioned as they should. Recently purchased a 325 Night Guard and the 329 Night Guard and shot them both today. Was cleaning them afterwards and noticed that the screw holding the rear sight on top of the frame was loose on both. It does seem like the lightweight revolvers take a pounding. Which, of course, I knew before I bought them. Starting to wonder whether S&W did any type of real world testing with these. While I won't shoot these as much as a 625 or 629, it's really disappointing that S&W is moving all of these light-weight guns out the door and we're hearing about so many issues.