- Punt Gun
The punt gun is basically a huge shotgun that was widely used in the 19th and early 20th centuries to hunt large numbers of waterfowl for commercial harvesting operations. While these weapons were often custom-made and thus vary widely in their size, their bore diameters often exceeded 2 inches (51 mm) and they fired over a pound of shot at a time. The strange offspring of a cannon and a shotgun, punt guns were often mounted to a boat as the recoil would probably kill someone who tried to fire it unmounted. A single shot from a punt gun could kill over 50 birds.
While a punt gun is rare to find, they are more or less legal depending on how old they are. Check out this video of a punt gun in action!