|“||Payload for the Storm Cannon.||„|
|— In-game description|
A Large Item carried on the shoulder that serve as ammo for Storm Cannons. It can be produced at Factories but not at Mass Production Factories. It can be stored in Ammunition Rooms. The shell has an explosion radius of 17m.
Structures Using 300mm
|Name||Image||Cost||Description||Built with||Destroyed by 12.7mm?|
||400||A heavy fixed position artillery that can release devastating firepower on distant enemy targets. Requires 3 by 3 bunker complex to be build.