The Cattewater Gun is a type of cannon but because it would have fired its shots straight ahead, it is classed as a breech-loading swivel gun! It's a tube of wrought iron set into an oak bed and ...

This early 16th century cast iron, breech-loading cannon is the only one of its kind in Wales. It is designed to be carried on a ship of war and fired through a gun port on the side of the hull.