Thanks pjaln and TMG for your thoughts. In thinking about how one could scope the Mauser without altering the receiver, I'm kind of thinking about the possibility, and if I could find a gunsmith to do it, of a quarter rib on the barrel holding the rear sight, and the rib itself also cut to accept Ruger rings - and then put an intermediate/scout scope on it. I don't know how big of deal making the Ruger ring cuts in a rib would be?