Whow this is really cool!!!
Yesterday I needed to recenter a scope and remembered this thread. So out came a mirror, I slapped it on the objective and at first I couldn't see a thing, but after looking a bit more by god I could see 2 cross hairs. A twist here and a twist there and the scope was recentered. This is a very cool, increadably fast method of centering a scope. Thank you all and thanks Leupold.
