I purchased a new 650 late last year. I've shot it infrequently over the last 4 or 5 months. The last time I took it to the range I noticed that occasionally the cylinder seemed to be dragging. I examined the gun which seems to have an extremely tight barrel/cylinder gap. I noticed some lead buildup and gave it a good cleaning. Today was the first time I have shot it since. Halfway through a cheap box of 38 Blazers (all lead) the cylinder seemed to start dragging again. There were a couple of instances when the trigger did not want to pull all the way to the rear and fire. Also on a couple of occasions the cylinder seemed to rotate in a very jerky motion (for lack of a better word), as if it were dragging and then letting go. It was not a smooth rotation. I'm guessing that all of this is probably a result of the tight barrel/cylinder gap. The gap is so tight that I can only see bright light through it at certain angles. Is this a good assumption, or could it be something more serious? Thanks for any feedback. I've also posted this in the revolver forum.