I need(wait,I'm not married) want a slug gun. For hunting whatever.I do have a duck gun so a spare barrel doesn't matter.Rifled barrel too A 12 gauge I could use for the rare elk opportunity,but a 20 would kill anything else I would need this for,no? Some of the sabots are reaching 2000fps!? Anyway,I know the Remmy 870 is a popular one,how about the Mossberg? Any other choices? Maybe a scope?