What is the term for the action of loading a round into the chamber of a firearm while removing the magazine?

Chambering refers specifically to the action of loading a round into the chamber of a firearm. This occurs after a shooter has removed the magazine and manually cycles the action of the firearm—usually by pulling the slide rearward and then allowing it to move forward—thereby placing a cartridge from the magazine into the chamber for firing.

This process is essential for preparing a firearm for use, as it ensures that there is a round ready to be fired when the trigger is pulled. It is a fundamental operation for proper firearm handling and safety. Other terms presented do not accurately describe this action; slide lock pertains to an engaged mechanism preventing the slide from moving, magazine release is the mechanism used to detach the magazine from the firearm, and safety/decocker relates to functions designed to enhance firearm safety by either engaging the safety mechanism or lowering the hammer on a live round.

Understanding chambering is crucial for proficiency in firearm operation and safety, as it directly impacts the readiness of the firearm for shooting.