How many bullets can be fired from a bullet at a time?

A bullet is a single projectile designed to be fired from a firearm, so it cannot fire other bullets. Instead, each bullet is loaded into a cartridge, which is then chambered in the firearm. When the firearm is discharged, only one bullet is fired at a time unless it is a semi-automatic or automatic weapon designed to fire multiple rounds in rapid succession. In those cases, the firearm still fires one bullet per trigger pull or cycle.