Rifle of the world 2 : M1 Garand

The M1 Garand (officially the United States Rifle, Caliber .30, M1) was the first semi-automatic rifle to be generally issued to the infantry of any nation. In 1936, it officially replaced the bolt-action M1903 Springfield as the standard service rifle of the United States Armed Forces and was subsequently replaced by the selective-fire M14 in 1957. However, the M1 continued to be used in large numbers until 1963 and to a lesser degree until 1966.

The M1 was used heavily by U.S. forces in World War II, the Korean War, and, to a limited extent, the Vietnam War. Most M1 rifles were issued to American Army and Marine troops, though many thousands were also lent or provided as foreign aid to America's allies. The Garand is still used by drill teams and military honor guards. It is also widely sought by the civilian population as a hunting rifle, target rifle, and military collectible. The name "Garand" is pronounced variously as [gəˈrænd] or [ˈgærənd]. According to experts and people who knew John Garand, the latter version is preferred.

History
Though the U.S. Army became interested in self-loading rifles with the Bang and Murphy-Manning of 1911, and there were trials in 1916-8,[5] the M1's origin properly dates to 1919, when armies around the world were realizing standard rifle cartridges were more powerful than necessary for typical engagement ranges, leading to heavier rifles than really required. The Army trials in the 1920s had a .256in minimum caliber requirement, compared to the .30-06 then standard.

Firearms designer John C. Garand, working at the Army's Springfield Armory, began with a .30 caliber primer-operated breech. Twenty-four rifles, identified as "M1922", were built at Springfield in summer 1924, and at Fort Benning during the summer of 1925 they were tested against the Thompson autoloading rifle, Berthier, Hatcher-Bang, and "highly promising delayed blowback Pedersen rifle".[7] This led to a further trial of the improved "M1924" Garand against the Thompson, ultimately producing an inconclusive report.[8] Therefore, the Ordnance Board ordered a Garand variant .30-06, while in March 1927 the Cavalry Board reported trials between the Thompson, Garand, and '03 Springfield had not led to a clear winner, leading to a gas-operated .276 model.

During the spring of 1928, both Infantry and Cavalry Boards ran trials with the .276 Pedersen T1 rifle, giving it high praise (despite its use of waxed ammunition).[10] On 13 August 1928, a Semiautomatic Rifle Board carried out joint Army, Navy, and Marine Corps trials between the .30 Thompson, both cavalry and infantry versions of the T1 Pedersen, "M1924" Garand, and .256 Bang, and on 21 September, the Board reported no clear winner. The .30 Garand, however, was dropped in favor of the .276.

Further tests by the SRB in July 1929, which included rifle designs by Brauning, Colt-Browning, Garand, Holek, Pedersen, Rheinmetall, Thompson, and an incomplete one by White,[12] led to a recommendation that work on the (dropped) .30 gas-operated Garand be resumed, and a T1E1 was ordered 14 November 1929.

Twenty gas-operated .276 T3E2s Garands were made and competed with T1 Pedersen rifles in Spring 1931. The .276 Garand was the clear winner of these trials. The .30 caliber Garand was tested at these trials in the form of a single T1E1 prototype but was withdrawn with a cracked bolt on 9 October 1931. A 4 January 1932 meeting recommended adoption of the .276 caliber and production of approximately 125 T3E2s. Meanwhile, Garand redesigned his bolt and his improved T1E2 rifle was retested. The day after the successful conclusion of this test, Army Chief of Staff General Douglas MacArthur personally disapproved any caliber change, in part because there were extensive existing stocks of .30 M1 ball ammunition. On 25 February 1932, Adjutant General John B. Shuman, speaking for the Secretary of War, ordered work on the rifles and ammunition in .276 caliber cease immediately and completely and all resources be directed toward identification and correction of deficiencies in the Garand .30 caliber.