my revolver works fine except when loading and unloading the cylinder is binding, i think on the hand ? even with set screw removed from base pin,i dissasembled the grip frame and trigger group and the cylinder spins freely. i looked for broken or worn parts , none found! . one other thing when you cock the hammer to the first postion it stays back farther than my other 83s the hammer doesent come back to almost touch the frame as on my 2 others pistols. thanks bob