I think Shackleton has a point, I have some lightfield 3 1/2 inch mag slugs that create close to 4000 foot pounds, and you could have that in a pump that could hold four or more and is very easy to point, with that much power available, I think it makes shotguns a great option, but unless you have a shotgun that can handle the big slugs, a large caliber rifle would be better.