Cannon

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Ammunition

 * Cannonball (Fallout 4), an ammunition type for the Broadsider in Fallout 4
 * Cannonball (Fallout 76), an ammunition type for the Broadsider in Fallout 76.

Objects

 * Human cannonball outfit, an outfit set $$
 * Damaged artillery cannon, in the minigame Wastelad $$
 * Auto-cannon, an automated turret in Fallout 2 and Fallout Tactics.

Weapons

 * Drone Cannon and Drone Cannon Ex-B, two ranged weapons in the Fallout 3 add-on Mothership Zeta.
 * Tesla cannon, a ranged weapon in the Fallout 3 add-on Broken Steel, Fallout: New Vegas, the Fallout 4 Creation Club content "Tesla Cannon", and a proposed weapon for the canceled Fallout: Brotherhood of Steel 2.
 * X277 "Viper" Magnetic Rail Cannon, a mentioned-only weapon in Fallout 3.
 * Cosmic cannon, a ranged weapon in the Fallout 4 Creation Club content "Captain Cosmos".
 * Solar cannon and Solar cannon Mk.II, two ranged weapons in the Fallout 4 Creation Club content "Solar Cannon".
 * Meat Cannon and Plasma Cannon, two ranged weapons in Fallout: Brotherhood of Steel.
 * Laser cannon, a proposed weapon in the canceled Van Buren.

Other
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 * Cannon (Fallout 4), a world object found in Fallout 4.
 * Cannon (Fallout 76), a world object found $$
 * Loose Cannon, a trait $$