An autoloader that fires only one shot at each pull of the trigger WordNet 3.0 & Open English WordNet

A semi-automatic firearm, also called a self-loading or autoloading firearm, is a repeating firearm whose action mechanism automatically loads a following round of cartridge into the chamber and prepares it for subsequent firing, but requires the shooter to manually actuate the trigger in order to discharge each shot. Wikipedia

A firearm which automatically loads the next round, but will only fire one round per trigger pull Wikipedia Disambiguation

Weapon that performs all steps necessary to prepare the weapon to fire again after firing, capable of firing only once with each activation of the trigger Wikidata