I was using a Britannia ship, and my pumpkin cannon and blunder cannon, both were next to each other on the starboard side were instantly destroyed by a pirate today. I couldn't find anything about cannons being destroyed in such a manner. Neither of them were damaged, as they hadn't even fired yet, but I take one shot from the pirate ship and they disappear, along with all of the fuse cords, cannons and powder charges. (Fuse cords are a pain in the ass to make, and they aren't cheap either.)
