http://www.gunbroker.com/Auction/ViewItem.aspx?Item=378126805

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Believe it or not I lost a dot match with that same set up. The weight of the red dot sheared the pin in the bbl and it was moving side by side ever so slightly. Enough that I shot a big goose egg and the shooters at the range all thought I choked under pressure. Never mount to the bbl always the frame. J.Michael

Tell us you didn't do that to a five screw like the one pictured.
Mark