I purchased one of these .22 target pistols new in 2006. The pistol worked great up until about a year ago. At that time it started misfiring about 3 rounds out of a 10 round magazine. I tried a lot of different brands of ammo so I could rule out bad ammo as the culprit.It also started jamming on about one half of the misfires. I contacted Smith&Wesson and they sent me a shipping label to fed-ex the pistol to them and repair it under warranty. About 2 months later I got my pistol back and took it to the clubs range,loaded it and the first round misfired and jammed in the chamber. After removing the round I attempted to fire the rest of the 9 rounds in the magazine and had 3 misfires. I bought a new box of federal .22LR and the same thing happened with that magazine. I contacted Smith&Wesson again and the guy was very nice I dealt with and told me he would send me another label to fed-ex the gun back to them and said to send a note saying this was the second time I have sent it in for the same problem and told me to also send the magazines in so they could be checked. I did as he said and even sent several empty casing so they could see the firing pin is barely catching the rim of the rounds. The reason rounds were jamming in the chamber is because the firing pin is hitting so close to the edge its bending the side of the casing causing it to jamb. Once again I was without my pistol for almost 2 months. I finally got it back in the beginning of this month and it said they adjusted the slide to their specs.About a week ago took it to the range . It had 1 misfire in the first 10 rounds. Loaded up another 10 round magazine and had 3 misfires. Tried another 10 rounds and again 3 misfires. I came home and sent the guy I have been dealing with at S&W a email. This is how we have been contacting each other each time before. I told him the gun was not fixed and that they evidently did not test fire the pistol before they sent it back to me or they would see the problem still exist. This was over a week ago and I have heard nothing back from him. I really just want the problem repaired even If I have to pay to have it done. Its not much fun at the range with a misfiring, jamming pistol. I am at wits end with this and really do not know where to turn next. If anyone else has had a problem of this kind please let me know what you did to solve it.