You will find 8 different types of ammunition issued to be used during the M2 Browning .50 caliber machine gun, with the information of the different rounds shade-coded to indicate their kind; these consist of: The diagrams we've offered only depict distinct samples of how these devices do the job. https://machguns.com/product/colt-1919-bar-30-06-automatic-machine-rifle-transferable/