'''4.73x33mm Caseless''' is a type of [[ammunition]] for firearms. It is considered to be a <span style="color:#AA0000">'''(R)'''</span>ifle caliber, although a very special one.
This cartridge was originally designed for the ambitious Heckler & Koch G11 rifle, of which the latest iteration, the [[Heckler & Koch G11K2|G11K2]], is available in the Mazes.Ammunition in this caliber is regularly produced in occasional, periodic batches in the ammunition factories of the Mazes. They require specialized machinery and equipment which is only occasionally turned on
4.73x33mm is pronounced ''four point seventy-three by thirty-three millimeters''.