Figure 6-8.—Round guided into breech-bolt assembly.
If you look at the rotor from the rear, you see that it
As the breech-bolt assembly enters the front dwell
revolves in a counterclockwise direction. The
area of the main cam path, the locking cam forces the
ammunition is received from an external source. It is
bolt shaft down, locking the bolt in the front locking well
guided into the extractor lip on a breech-bolt assembly
of the rotor (fig. 6-9). The insulated portion of the
by the guide bar fingers (fig. 6-8), The bolt roller shaft
contact cam in the firing contact assembly depresses the
follows the main cam path and moves the bolt assembly
firing pin cam in the breech-bolt assembly. This moves
forward along the rotor tracks, cambering the round.
the firing pin forward against the primer of the round.
Figure 6-9.—Breech-bolt assembly in firing cycle.
6-7
