276in caliber ... modern hunting .30/06 loads, those with 180-grain or heavier bullets and slower-burning propellants, will produce pressures that exceed what the M1 Garand was designed to ...

and Garand would eventually patent his “Semiautomatic, Caliber .30, M1 Rifle” during 1932. However, it would take until January 9, 1936, for the U.S. Military to officially adopt the promising ...

The M1 Carbine was chambered for a light .30 caliber round. Though it was far less potent than the M1 Garand, it offered greater range, accuracy, and firepower than a handgun. In the early days of ...