Looked at the Luepold 2x7 or 3x9 shotgun scopes, and the Nikon slug hunter. Any suggestions on brand/magnification? This will be going on top of a Ithaca Deerslayer 20 gauge slugger.
Is this Ithaca drilled and tapped, or are you mounting out on the rear sight base? If the latter is the case, you are going to need an extended eye relief scope. I've got a 2 3/4X Burris Scout on my 37.