What I just pulled/pushed out of my new to me Ruger 10/22. Just bought this from a "new" member on this site (4 posts total) for a good price. As expected it looked as it had never been cleaned, so I set to do that today. Start cleaning the barrel and my pull through wire brush gets seriously jammed. Took almost two hours of pulling and cursing to get it through and this is the bubblegum that came out. The bore now looks super shiny and new to the point I can see the rifling all the way through both ends. That said, I am still leery of pulling the trigger now... Am I safe?