If you need the maximum amount of forward scope positioning (and many will) the Warnes Doc has will overhang the action opening like this. BUT, if you are a little creative with a Dremel - they can look like so
Please ignore all the rubber and foam around the scope and action - that setup was intended as joke about scope protectors.

The result I wanted you to see is the location of the rear ring and lack of overhang above the action opening. Those are geometrically identical bases to those in the first picture (pre-Dremel alterations).