> The shells for the weapon were extremely heavy, far too heavy for a man to load manually, at 330 kg each.
> As a result, each of them had to be carried by means of a ceiling-mounted trolley from their rack to a roller-mounted tray at the breech.
> Once on the tray, four soldiers could then push it into the breech to load it. The whole process took 10 minutes per shot from loading, aiming, elevating to firing.