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The Pedersen Rifle, officially known in final form as the T1E3 rifle, was a United States semi-automatic rifle designed by John Pedersen that was made in small numbers for testing by the United States Army during the 1920s as part of a program to standardize and adopt a replacement for the M1903 Springfield.
However, the Pedersen rifle lost to a new semi-automatic rifle designed by John C. Garand. The Garand was originally developed for .30-06 cartridge and converted to the new .276 cartridge. After the .276 Garand rifle was selected over the Pedersen rifle, General Douglas MacArthur came out against changing rifle cartridges, since the Army had ...
John Douglas Pedersen (May 21, 1881 – May 23, 1951) was a prolific arms designer who worked for Remington Arms, and later for the United States Government.Famed gun designer John Moses Browning told Maj. Gen. Julian S. Hatcher of U.S. Army Ordnance that Pedersen "was the greatest gun designer in the world".
The M1 Garand or M1 rifle [nb 1] is a semi-automatic rifle that was the service rifle of the U.S. Army during World War II and the Korean War. The rifle is chambered for the .30-06 Springfield cartridge and is named after its Canadian-American designer, John Garand .
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves ("rifling") cut into the barrel walls.The raised areas of the rifling are called "lands," which make contact with the projectile (for small arms usage, called a bullet), imparting spin around an axis corresponding to the orientation of the weapon.
In some ways this was a hybrid of the T1E1 and T1E2; it had the high-velocity long-barreled Browning gun, thickened armor, and more powerful engine of the T1E2, but it retained the hull, turret, dimensions, and transmission gear ratios of the T1E1. The T1E3 weighed 8.5 short tons (7.7 metric tons).
The US .30 Pedersen cartridge (auto pistol ball cartridge caliber .30 Model of 1918 or .30-18 Automatic) used in the Pedersen device was the basis for the 7.65×20mm Long. The cartridge dimensions were identical, although Pedersen device cartridges were loaded with a slightly heavier 80 grains (5.2 g) bullet which achieved a velocity of 1,300 ...
The .276 Pedersen was a shorter, lighter and lower pressure round than the .30-06, which made the design of an autoloading rifle easier than the long, powerful .30-06. The U.S. Army Chief of Staff Gen. Douglas MacArthur rejected the .276 Pedersen Garand in 1932 after verifying that a .30-06 version was feasible. [2]