RE: Good slug gun?
For the money you cannot beat a mossberg 695 bolt action shotgun. I've got one and I can hit a 3"x5" card at 50, 100, and 110 yards with every shot. I haven't gone further but I know that his gun with a lightfield hybred sabot slug is a tack driver.
I got mine with a leupold VXII 1-4x20 scope for $150.00 three years ago at a pawn shop. If you can find these guns then I would suggest that you buy them.
They won't let you down.
Paul