This is my first time ever posting. I own quite a few Smith and Wessons but this is my first revolver so please excuse my ignorance. I bought a brand new 586 Classic with a 4 inch barrel last week and shot it today for the first time. When I got home and started to clean it I noticed 1 small mark on each section of the cylinder very close to the front. I tried to polish them off but they wouldn't come off completely. I can post a picture if my description isn't enough but I have not seen these kinds of marks on other revolvers that I've shot and I want to know if I'm doing something wrong or if there is something wrong with my gun. I would very much appreciate any advice. Thank you!