I scored a real clean model 64-6 from another shooter that was selling it to fund a project. Action carries up perfectly, there is no appretiable end shake, and the trigger is quite smooth. It is one of the double-action only models and I presume that it was one of the police trade in's that J&G sales is still selling and I know they advertize some of them as very good plus but I can't find a mark on this one. I had been looking for a model 10 or 64 and this was just too good a deal to pass on.
However, this is my first center fire S&W revolver with a frame mounted firing pin; I have an old K-22 but that is a different matter. I also assume it contains MIM parts (no big deal to me) but I am curious as to at what series change (-?) and year did Smith begin using frame mounted firing pins? I have also noticed that the cylinder stop is forged into the frame rather than rivited on like the older revolvers; when did this start. I was a bit surprised that Smith continued to use a hammer block rather than a transfer bar when they moved the firing pin from the hammer nose to the frame. The grips it came with are ugly but fit my hand surprisingly well. Any other comments or recommendations would be appreciated. This will probably become my new bedside table gun.