Uh, no?Yes, though it's very long in this case.
Also - as far as I understand, illustration shows an early concept of autoloader, where shells are in carousel, and charges come exclusively from the bustle.
Real tank is simpler.
Bustle is for storing additional non-automated ammo outside of the hull. Like in T-90M. No loader.
Autoloader has it's own places for charges, look closely - each cassette consists of two cylinders. Like T-72 cassette, only turned 90 deg vertically.