Minecraft War Cannon

This is a Regular One-Shot Cannon on a 4-block-high platform, manual reload and 11 arrow dispensers as close-range weapons. It is good as a battle altillery thanks to its (Very) Long range, and can be used in PvP Battlegrounds.

Additional Notes

The Material I used is Obisidian, but any material can be used to build it.

Arrows Fly Close to the player's head, many fails may occur

The Range of the shot can be regulated by changing the number of tnt blocks inside the water flow (The ones not used as ammo)