.30 carbine

Shortly before World War II, the U.S. Army started a "light rifle" project to provide support personnel and rear area units a weapon with more firepower and accuracy than the standard issue M1911A1 .45 ACP handgun and half the weight of the standard issue M1 Garand .30-06 rifle or the .45 ACP Thompson submachine gun.

As a result, it has approximately 41% higher muzzle velocity with 27% more impact energy than the parent .32 WSL cartridge.

[7] The M1 carbine was issued to infantry officers; machine gun, artillery and tank crews; paratroopers; and other line-of-communications personnel in lieu of the larger, heavier M1 Garand.

The M2 carbine was introduced late in World War II with a selective-fire switch allowing optional fully automatic fire at a rather high rate (850–900 rpm) and a 30-round magazine.

A postwar U.S. Army evaluation reported that "[t]here are practically no data bearing on the accuracy of the carbine at ranges in excess of 50 yards.

Where carbine fire had proven killing effect, approximately 95 percent of the time the target was dropped at less than 50 yards.

With these requirements in hand, Winchester's Edwin Pugsley chose to design the cartridge with a .30 caliber, 100–120 grain bullet at a velocity of 2,000 feet per second (610 m/s).

Standard government-issue rounds reach over 1,500 ft/s (460 m/s), with factory loads, and handloads producing similar velocities or tuned for more efficient short-barrel performance without excessive blast.

Plainfield Machine produced M1 carbines from 1960 to 1977, when they were bought out by Iver Johnson Corp, who has manufactured them at least until a 50th anniversary model in 1993.

The Plainfield Machine Company (later taken over by Iver Johnson's Arms) sold a sporting rifle copy of the M1 carbine chambered for this cartridge but only about 500 were made.

Marine with M1 carbine at Guam
WW II M1 carbine with a magazine pouch mounted on the stock that held two spare 15-round magazines and 10 .30 carbine rounds on a stripper clip
Automag III .30 carbine pistol made by Irwindale Arms, Inc. with .30 carbine cartridge
Winston Churchill fires an M1 carbine during a visit to the US 2nd Armored Division on Salisbury Plain , 23 March 1944
Universal Enforcer in .30 carbine
Inland Advisor pistol in .30 carbine