Hey timbow im new to these forums, but i had to register when i saw ur question. I had a friend that did about the exact thing to my new 6" 686 7-shot a few months ago. A few days after i bought it he was looking at it and opened the cylinder and before i even thought about what he was doing, he spun the cylinder and while it was spinning, flicked it with his wrist very hard and slammed it to. Later that night i was inspecting it and a few of the small sharp teeth on the extractor had been knocked back obviously from it slamming against the frame. I then cocked the gun very slowly through each charge hole and one of the holes would come a hair from locking up where it should be, but wouldnt, u would have to turn it a small bit then u would hear it click, and lock where it should be. Then i called S&W and one guy gave me some bs about how i needed to load empty cartridges into it and then cock it to check the timing, i even told him some of the extractor teeth looked damaged but he said they were supposed to look like that, even when i told him it had been slammed to, i then called right back and spoke with another tech and he said, no all the extractor teeth should look the same and not be knocked back or damaged looking. The problem was when the tooth was knocked back, and u would cock the revolver, the sear(think thats what makes contact with the extractor,right everyone?) would run on that tooth but wouldnt push the cylinder far enough up to lock one of the charge holes in its proper place, because it ran out of tooth. S&W has awesome customer service though, after i told him that my friend had slammed it to, he sent me and address label to ship it to them and then they replaced the extractor and shipped it back to me for free!