held to its desire not to reduce the effectiveness of individual aimed shots. 280 British (7 mm) cartridge with an eye towards controllable fully automatic fire. They had spent considerable time and effort developing the intermediate-power. When the United States developed the T65 cartridge, the British military took a different route. Steel jacket lead core 145-grain (9.4 g) boat-tail bullet with a No. Steel jacket lead core 150-grain (9.7 g) flat base bullet The eventual result of this competition was the T44 rifle. Over forty years of technical progress in the field of propellants allowed for similar service cartridge performance – firing a 147 grains (9.53 g) bullet at 2,750 ft/s (838 m/s) with 2,468 ft⋅lbf (3,346 J) muzzle energy – from a significantly shorter, smaller case with less case capacity. The resulting cartridges provided a ballistic performance roughly equal to the U.S. 300 Savage has a shorter case length than the resulting 7.62 NATO. 30-06 Springfield cases and were longer compared to the original T65 case as the. The later T65 iterations were made from shortened. 300 Savage cases because the Frankford Arsenal cases had slightly thicker case walls. 30-06 Springfield cases which gave a little less capacity than standard. The experimental cases were made from standard. The original experimental case design by the Frankford Arsenal was designated the T65 and was similar to the. Military that resulted in the development of the T65 series of experimental cartridges. 300 Savage became the basis for experiments on behalf of the U.S. T65 series experimental cartridges ĭuring the 1940s, the. 30-06 Springfield round and experimental cartridges. The test program continued for several years, including both the original. Though not adopted, experience with a fully-automatic Garand laid the groundwork for its replacement. Springfield Armory's T20 rifle was a fully automatic version. One of the most common complaints was the limited-capacity, eight-round en-bloc clip, and many experimental designs modified the weapon with a detachable box magazine. 30-06 Springfield was officially replaced by the 7.62 NATO M14 in 1957.ĭuring the 1940s and early 1950s, several experiments were carried out to improve the M1 Garand semi-automatic rifle. 30-06 Springfield served well beyond the Korean War and into the mid-1950s. saw little need to replace it during World War II, and the. The Garand performed so well that the U.S. troops with greater firepower than their bolt action-armed opponents. 30-06 Springfield was the only round available, and the M1 Garand provided U.S. Thus when war appeared to be looming again, only a couple of decades later, the. 30-06 Springfield was suitable for semi-automatic rifles, the. When it was eventually demonstrated that the. At the time the most promising design was the. A less powerful cartridge would allow a lighter firing mechanism. 30-06 Springfield cartridge proved difficult to adapt to semi-automatic rifles. Work that would eventually develop the 7.62×51mm NATO started just after World War I when the large, powerful. The cartridge is used by military personnel, on mounted and crew-served weapons that are mounted to vehicles, aircraft, and ships. M24 Sniper Rifle and M240 Medium Machine Gun). Many other firearms that use the 7.62×51mm NATO fully powered cartridge remain in service today, especially various designated marksman rifles/ sniper rifles and medium machine guns/ general-purpose machine guns (i.e. The later adoption of the 5.56×45mm NATO intermediate cartridge and assault rifles as standard infantry weapon systems by NATO militaries started a trend to phase out the 7.62×51mm NATO in that role. service for the M14 rifle and M60 machine gun. It is a standard for small arms among NATO countries.įirst developed in the 1950s, the cartridge had first been introduced in U.S. The 7.62×51mm NATO (official NATO nomenclature 7.62 NATO) is a rimless, bottlenecked rifle cartridge. T-65 experimental cartridge series (derived from the. Vietnam War, Six-Day War, Yom Kippur War, Iran–Iraq War, Falklands War, The Troubles, Gulf War, War in Afghanistan, Iraq War, Libyan Civil War, Syrian Civil War, Yemeni Civil War (2015–present), Saudi Arabian-led intervention in Yemen, among other conflicts Unfired 7.62×51mm NATO round (B) next to three recovered bullets, showing rifling marks (A)
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