What do semi-automatics shoot?

The correct answer emphasizes that semi-automatic firearms are designed to fire one round with each pull of the trigger, using a magazine that is typically inserted into the grip or handle of the firearm. After firing a round, the gun employs its own mechanism to eject the spent cartridge case and load the next round from the magazine into the chamber automatically. This allows for a quick follow-up shot without requiring the shooter to manually operate the action after each shot.

In a semi-automatic, the magazine holds multiple rounds, allowing the shooter to fire several times before needing to reload. This feature distinguishes semi-automatics from other firearms that may require manual cycling or are single-shot weapons. Understanding this function is crucial for safe handling and operation.

Options that mention continuous rounds or alternating from multiple chambers do not accurately represent how semi-automatic firearms operate, as they do not possess the ability to shoot continuously or switch chambers like fully automatic firearms would.