To quote Savage Arms...
THE RIFLE AS A SINGLE-LOADER.
The act of placing a cartridge into the Breech-Opening forces the Automatic Cut-off back into it's recess in the Receiver, retiring the uppermost cartridge in the magazine below the line of movement of the Breech-Bolt, so that only the cartridge in the breech-opening will be engaged by the breech-bolt on its forward travel.