my post in the optics section is getting no love, so maybe this will do better here...

considered the nikon slug hunter but took a look at the leupold ultimate slam and liked that more. both of these scopes have a reticle that shows the drop of the slug out to 200 or 300yds

what power though?

2-7x33 (2.5-6.5x actual mag.)
or
3-9x40 (3.3-8.5x actual mag.)