Model 29 Update: I had gotten a Model 29 Silhouette model with a "blown" cylinder. The cylinder is bulged from an overload. The bulge is not visiable to the eye. The gun would also come unlocked and rotate on firing. This was a separate problem.These were not hotrod loads. The gun was returned to the factory and the cylinder was replaced and gun updated on my dime. The unlocking problem went away. There is some risk getting a second hand magnum revolver....or maybe I have just been unlucky. Nobody touches my old 4" Model 29.