OMG, I got's to get me one of these!!!!!

[1ViciousGSX]

http://www.break.com/index/biggest_shotgun_in_the_world.html

[JET]

That's got to leave a bruise if you put it on your shoulder!

[92EvilTalon]

thats a punt gun if you read there comments. And I think they said it was mounted on little boats in the 1800's.