What is the correct order of the steps in the M240B's cycle of operation?

The correct order of the steps in the M240B's cycle of operation is Feeding, Chambering, Locking, and Firing. This sequence accurately reflects how the machine gun prepares and delivers a round.

Initially, Feeding involves the mechanism drawing a round from the ammunition belt into the feed tray, preparing the round for entry into the chamber. Following this, Chambering occurs, where the round is pushed fully into the chamber of the barrel, ensuring it is properly aligned for ignition. This is followed by Locking, where the bolt closes over the chamber, securing the round in place and preventing any gas from escaping during firing. Lastly, Firing occurs when the firing pin strikes the primer of the cartridge, igniting the propellant, which propels the bullet down the barrel.

This ordered sequence is crucial for the proper functioning of the weapon and ensures reliable operation in various conditions. Understanding this cycle allows operators and maintainers to troubleshoot and ensure the machine gun operates efficiently while also appreciating its mechanical design and engineering principles.