This has happened to me as well Mate. It happens on vanilla too BTW. I think it's the game's way of penalizing folks for not having the skill necessary. So I'll ask this....what is your level? what is the skill in cannoneer for your crrew? what are your gunner's and your accuracy and cannon numbers? Do you have any negative numbers next to your skills on your character interface? If so it's because you're using a ship that's out of your league for your skills.
Industrial revolution cannon quality is not the issue, I suspect it's you and your crew's training proficiency.
So think of it this way....
You have an unskilled crew and gunner and you yourself dont have much gunnery experience, but suddenly you have this big beautiful ship and you are facing a very skilled opponent but your crew and you have never actually done much gunnery practice and aren't very smart either in the use of powder and shot.
- One of your gun crews loads the incorrect black powder charge (three times the safe powder amount) and KABLAMM, one gun's out of action. :boom
- Your enemy with very skilled gunner and crew take aim directly at your larboard forward guns and get them. Two more are out of action.
- Another of your gun crews can't get the touch hole to ignite, so they put in another powder charge in front of a rammed round and some wadding and try it again and it goes off and blows the gun to kingdomcome and kills the gun crew in the process. :boom
- Then another of your gun crews doesn't properly water swab another gun and it's still hot with smoldering powder embers when the next charge is rammed and KABLAMM you shoot the powder ramming shovel staff out at your enemy, but the gun cracks in two. :boom
- Yet another of your gun crews is in such a hurry and so flustered under fire that they don't shoot the round in the tube and load another powder charge and ball behind the first one (don't laugh, that really used to happen), and now double loaded, the gun blows itself up, the deck below it, the gunwales in front of it and two gun crews on each side of it and the gun next to it is knocked off it's carriage as well in the process! :boom :boom
I'm just sayin that every time this has happened to me it's with a ship out of my crew and myself abilities to handle until we level up some more or that the enemy I'm facing is VERY experienced (way more than me) and his gunners tear me up.
When I have trained crews, and me and my gunner's perks are very good, and I'm on a ship that's ideal for my skill level, and facing an equal opponent I only lose a gun or two if at all in a very heavy enduring battle.
Maybe I'm wrong....but I don't think so.
MK