Has anyone had positive or negative experiences, my sidewinder 3o has a interesting mark appear in interior glass. I'm so scope genius and I know it's not rocket appliances but I don't see how impact could have done it. I baby my rifles and after a range session and cleaning it looking through glass it appeared. I know it's not on lens because mark dosnt move when I turn the focus. Any feed back would be great. Has been a awesome scope thus far.
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