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The 30-06 Springfield cartridge (pronounced “thirty-ought-six”, "thirty-oh-six") or 7.62×63mm in metric notation, was introduced to the United States Army in 1906 (hence “06”) where it was in use until the late 1970s. It remains a very popular sporting round, with ammunition produced by all major manufacturers.
The .30-06 Springfield cartridge case can hold 68.2 grains and has a volume of 4.42 millilitres (0.270 in 3). The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. [citation needed].30-06 Springfield maximum C.I.P. cartridge dimensions.
From left to right 9.3×62mm, .30-06 Springfield, 7.92×57mm Mauser, 6.5×55mm and .308 Winchester cartridges. The 7.62×51mm NATO (not pictured) is similar in appearance to the .308 Winchester. Several cartridges have been developed using the .308 Winchester as a parent case, some becoming very popular for hunting, particularly in North ...
The .30 TC (0.308 in (7.8 mm) x 1.920 in (48.8 mm) is a non-magnum that is somewhat shorter and wider than the .308 and .30-06. [1] The .30 TC has speed and energy equal to the .30-06. [7] All three cartridges weigh approximately the same, but the .30 TC produces less recoil. The case length of the .30 TC is 1.92 inches. Although it is somewhat ...
.30-06 Springfield, is a US military cartridge used in World War I, World War II, the Korean War, and the Vietnam War, as well as hunting game, is known as the 7.62×63mm in metric measurement..303 British, used in Lee–Metford and Lee–Enfield rifles, is known as 7.7×56mmR in metric measurement.
Since its dimensions are taken from the 30-06 cartridge from the 1906 US Army cartridge, the lower half of these case dimensions have been used for designing the .243 Winchester, 25-06, .270 Winchester, .280 Remington, 7mm-08, .308, .30-06, .35 Whelen, and others.
In 1969 the 308 Win. was dropped from production, and by 1970 only the 243 Win, 270 Win, and 30-06 Sprg were offered. Again in 1971 chamberings were reduced to only the 243 Win and 30-06 Sprg. In 1972 the rifle was redesigned to incorporate the same design stock and a 2 position safety similar to that of the Model 70.
The principle at work in the short magnum cartridge is the fitting of larger volumes of powder in closer proximity to the primer's flash hole, resulting in more-uniform ignition. .300 WSM has a case capacity of 80 grains. The .30-06 Springfield holds 69 grains; .308 Winchester holds 56 grains; 30-30 Winchester holds 45 grains.