This 19-3 revolver seems to not lock up on one or more charge holes. 6-10 rounds out of 100 didn't go bang. When I checked one round that didn't ignite, the primer had a very light hit, off center. The other primers had good deep hits. There is also evidence that the firing pin is enlarging the firing pin hole. I checked the ammo with my model 10-5 today and had no misfires. I'm thinking of sending the revolver back to S&W for repair, but I'm not sure about the quality of work there now on an old revolver. Does anyone have any feedback on the current quality of repair work on old S&W revolvers at the Performance Center?