I just mounted a Leupold 2-7x33 that I picked up used here off of the Campfire Classifieds.
The base is a Leupold Rifleman for the 336 and the rings are also Leupold Rifleman 1" lows.
It has plenty of clearance off the rear iron sight and enough in the back to adjust the magnification, but is still plenty low. I'm really pleased how it turned out.
I'll post some pics as soon as I get them sized correctly.
