I bought a gun with this mounted on it. The power ring was stiff so I sent it back to Leupold during this past summer. It was returned with a test report showing it was in perfect health. There wasn't any mention of what the problem was, but the ring turns much easier now (yes, I lubed it lightly w/o change). There are some very faint ring marks, a couple of very small nicks from the rings, and one on the bell, but the glass is perfect. Thin duplex reticle. $180 shipped USPS Priority. PP FF preferred.