Cannons, Expanded.

A creature may hold a cannon as if it is a two handed weapon so long as the cannons weight is below the creatures maximum carrying capacity. When holding a cannon you can add your Strength modifier instead of Dexterity for ranged attack and damage rolls and the cannon gains the following properties: martial weapon, special, misfire 1, reload 1, ammunition, ranged, heavy, two handed.

Example Cannons: 250lb - 1 damage dice - range 75/300ft - 250gp

500lb - 2 damage dice - range 150/600ft - 500gp

1000lb - 3 damage dice - range 225/900ft - 1000gp

1500lb - 4 damage dice - range 300/1200ft - 1500gp Cannon from pg 255 of the DMG:

Cannon from pg 255 of the DMG: 3500lb - 8 damage dice - range 600/2400ft - 3500gp

Special: Weight Based Damage and Range A cannons number of damage dice and range is determined by its size. A 500 pound cannon can fit a shot which deals 2 damage dice. Every 500 pounds the cannon is beyond this increases the damage dice by 1 as outlined above. A 500 pound cannons range is 150/600ft, every 500 pounds above this its minimum range increases by 75ft, and its maximum range adjusts accordingly (max range = min range x4). A cannon deals half its damage dice rounded down in d8 bludgeoning damage when being used for melee attacks (minimum of 1d8).

Misfire 1 A cannon starts with a misfire score of 1. Each time you fire your cannon hazardous shot remnants begin to build within the cannons chamber and the misfire score of the cannon increases as outlined on the misfire score table. When making a ranged cannon attack, before adding your to hit modifiers, compare the rolls result to the misfire score table. If the result is equal to or lower than the current misfire score of your cannon, your cannon misfires. When a cannon misfires instead of making a ranged attack it breaks, causing a small explosion forcing all creatures within 10ft of the cannon to make a constitution saving throw or take a number of d10 fire damage equal to the cannons number of damage dice. On a successful save they take half damage. While a cannon is broken it cannot be used to make ranged attacks until it is repaired. Misfire Score Table 1st shot - misfire 1 2nd shot - misfire 5 3rd shot - misfire 10 4th shot - misfire 15 5th shot - misfire 20 Clearing a Cannon. As an action you may clear a cannon, cleaning out loose shot remnants and resetting the cannons misfire score. The next time you fire your cannon it counts as having a misfire score of 1.

Reload 1 After this weapon is fired a number of times equal to its reload score it requires a bonus action or action to reload before being fired again.