Shot the 617 today. 37 rounds and 6 times the trigger stuck in the rearward position. The hammer was at times difficult to cock. S&W is sending a shipping label. I bought a 4" 617 last year and had misfire problems. Now this! Why don't they get it right before it leaves the factory. I've never had any problems with S&W centerfire revolvers. Oh well, live and learn---they don't make em like they used to.