I can't believe a Master Champion is a Master Chump! I bought this GP100 Master Champion only a couple weeks ago and after shooting 56 of 38 special and maybe 18 .357 mags this $700 revolver has failed. So much for a revolver goes bang every time. When after three pulls of the trigger or three pulls of the hammer the dang hammer and trigger lock up tight. I see the bottom lock is down and I can move the cylinder to the next locking notch. The trigger nor the hammer can be pulled except maybe a 1/4 of action. I had dry fired the gun last night with no malfunction. Today outside I dry fired at the target 6 times then I shot 6 loaded rounds with no problems. I decided to dry fire again to see if I was staying on target when pulling the trigger and dang if the gun didn't lock up on me. The cylinder doesn't seem to have forward or backward play or sloppy tolerances. This is one tank of a gun that evidently the tracks have come off of it. I can't tell you how P.I.S.S.E.D I am about this. I never expected this from a Ruger let alone this expensive Match Champion which is supposed to be Rugers competitive answer to Colt and S&W. This gun didn't even make it to 100 rounds before failing. I am so disappointed it is not even funny. Ruger will get an unhappy call from me ASAP.