Turn sequence in Black Powder Wars is very straight forward.
Rally phase. Disordered units are returned to good order and routed units become disordered.
Barrage Phase. Artillery may shoot once in this phase. If the player wishes to move artillery, he may do so but may still fire during the regular fire phase with a penalty of 1.
Movement Phase. Move all troops now including charges and artillery movement.
Fire Phase. Any unit may engage an enemy with ranged fire. Units involved in close combat and artillery that fired during the Barrage phase do not fire. Cavalry NEVER fire when mounted.
Close Phase. All units in stand to stand contact perform close combat. Results are applied immediately.