Perhaps this is enough. Need some spare barrels....
The tac tray for the coaxial [coax] machinegun mounted on the inside left wall of our M48A5 tanks held 6000 rounds. We often carried enough spare boxes of ammo on the floor in ammo cans [200 rounds each, or if we had enough time to break it down and refill the cans the way we liked, 250 rounds each] to refill that, and outside the tank on the external bustle rack, about half that much again [in a USAF mini-gun ammo can for 3000 rounds] plus extra .50 ammo, and an extra can or two [1000 rounds] of .45 for our pair of M3A1 .45 *greasegun* submachineguns and our half-dozen or so .45 pistols. All told, it added up to a load of around 15,000 rounds for the one coax machinegun. One morning we had fired off that much ammo before noonish lunchtime. It was, as we said in the business, a busy day at the office.
The guy behind the log does NOT have enough ammo. Or spare barrels.
Spare barrels, and an asbestos glove.