Board Thread:General Discussion/@comment-30638561-20131030195810/@comment-5625000-20131102021230

8 smithing, 8 engineering, and 8 chemistry Cannon=2 Plank+4 GPowder+5 Iron Cannonball=5 Iron These would make the cannon more fair, and also it will constantly need a refill of gunpowder, and unlike catapult, you can retool a cannon.