By definition Artillery would include the Large guns, cannon, ordnance, etc used on the ship For the purpose of this site, Artillery will include the cannons, swivel guns, and the ordinance used with the guns,
In the movies, we often see the pirate ship engaging other shiips in enormous ship to ship battles swapping broadsides, blowing great holes in the sides of ships, knocking out sails, etc. In reality, pirates tried to avoid such confrontations. Some reasons why pirates would avoid prolonged cannon fire are
Wtih this in mind, pirates often used their cannons as a last resort in when attacking or being attacked.