The .30 caliber M19 / M19A1 steel ammunition can / box was developed to deliver belts of 250 .30-06 cartridges for the .30 Cal. Browning machine guns and was later used for the NATO equivalent 7.62mm rounds for the M60 machine gun and other weapons. It has also been used for various calibers in cartons, clips, bandoleers or other packaging. The .30 cal. steel M19 / M19A1 ammo can replaced the steel Cal .30 M1 / M1A1 Ammunition Box after WW II.