[quote=HazmatMedic]
Also, cannons on Galleons, Battleships and the like are more common and acceptable than Land Cannons. It can be assumed Land Cannons use bigger calibres than Naval Cannons, as LCs need to punch through the stones that make up a cities walls and fortifications, whereas NCs only need to break through thin layers of wood.
[/quote]

I suppose that makes sense.