If you had a couple of guys supporting it - the way used to do with those 20' long bird guns - it would have a heck of a spread.
Might be just the thing when the spy drones come:)
Looks like something from "Sons of Guns" TV show.
Too much engraving, maybe American Guns.
If you fired all three at once I imagine the recoil would be interesting...
Interesting might turn into, "I can see my house from up heeerrreeee......Splat!"