sentences:  Electrical firing was the preferred method because the firing circuit could be energized by firing keys down in the plotting room when firing salvos at surface targets, or up in the director when firing at air targets.Percussion firing could be executed by the Pointer (man controlling elevation) by pushing a foot treadle.When the gun fired, the recoil's rearward motion returned the rammer lever to the up position, and the rammer would drive back to the rear of the rammer tray.