Which action type includes manually cycling the action to load each round?

The action type that includes manually cycling the action to load each round is the break action. In a break action firearm, the shooter opens the action by breaking the barrel away from the receiver, allowing for the insertion of a round into the chamber. This method requires the shooter to physically manipulate the action for each shot, making it very hands-on. This design is commonly found in shotguns and some rifles, where the simplicity and reliability of loading and unloading ammunition are advantageous.

In contrast, lever action and pump action firearms use a different cycling mechanism, where the shooter operates a lever or a pump to chamber rounds automatically or semi-automatically. Muzzleloaders, while also requiring individual loading, operate differently in that they involve loading powder and a projectile from the muzzle (the open end of the barrel) rather than through an action mechanism like break, lever, or pump actions.