In tubular fed, recoil-operated actions, what must be tripped by the bolt to hinge down?

In tubular fed, recoil-operated actions, the operation of the action relies heavily on the movement and coordination of various components. The bolt plays a crucial role in cycling the action, and when it moves rearward, it must trip the elevator and lifter mechanism to allow the next round to be properly fed into the chamber.

The elevator and lifter are designed to raise the next cartridge into position directly below the chamber when the bolt moves to the rear. This process is vital for ensuring that the firearm can feed rounds efficiently and is an essential aspect of the cycling mechanism in these types of firearms. The motion of the bolt is what activates the hinge mechanism of the elevator and lifter, therefore allowing for proper ammunition handling.

Understanding this function is essential for effective troubleshooting and inspection of tubular fed firearms, as issues with the elevator and lifter can result in feeding failures or malfunctions during operation.