It has gained popularity in many countries as an exceptional cartridge for game in the medium- to large-sized class. The 308 Winchester is one of the most popular hunting cartridges in the United States, and possibly the world. As the chambers differ accordingly the head space gauges used for the two chamberings differ. Even though the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) does not consider it unsafe to fire the commercial 308 Winchester rounds in weapons chambered for the military 7.62×51mm NATO round, there is significant discussion about compatible chambers and pressures between the two cartridges based on powder loads, chamber dimensions and wall thicknesses in the web area of the military compared to commercial cartridge cases. 7.62×51mm NATO Īlthough not identical, the 308 Winchester and military 7.62×51mm NATO cartridges are similar enough that they can be loaded into rifles chambered for the other round, but the 308 Winchester cartridges are typically loaded to higher pressures than 7.62×51mm NATO service cartridges. North American SAAMI maximum pressure for the 308 Winchester is 427.47 MPa (62,000 psi). regulated countries are currently (2008) proof tested at 519.00 MPa (75,275 psi) PE piezo pressure. This means that 308 Winchester chambered arms in C.I.P. pressure to certify for sale to consumers. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings the 308 Winchester can handle up to 415.00 MPa (60,191 psi) P max piezo pressure. The common rifling twist rate for this cartridge is 305 mm (1 in 12 in), 4 grooves, Ø lands = 7.62 mm, Ø grooves = 7.82 mm, land width = 4.47 mm and the primer type is large rifle. All dimensions in millimeters (mm) and inches.Īmericans would define the shoulder angle at alpha/2 = 20 degrees. 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.ģ08 Winchester maximum C.I.P. The 308 Winchester has 3.64 ml (56.0 grains) cartridge case capacity. When loaded with a bullet that expands, tumbles, or fragments in tissue, this cartridge is capable of high terminal performance. The relatively short case makes the 308 Winchester especially well-adapted for short-action rifles. It is also commonly used for hunting, target shooting, metallic silhouette, bench rest target shooting, palma, metal matches, military sniping, and police sharpshooting. Since then, the 308 Winchester has become the most popular short-action, big-game hunting cartridge worldwide. Winchester's Model 70, Model 88 and Model 100 rifles were subsequently chambered for the new cartridge. Winchester branded the cartridge and introduced it to the commercial hunting market as the 308 Winchester.
#308 SAVAGE RIFLE SERIES#
Winchester saw a market for a civilian model of the late T65 series designs and introduced it in 1952, two years prior to the NATO adoption of the T65E5 experimental cartridge iteration under the 7.62×51mm NATO designation in 1954. Over forty years of technical progress in the field of propellants allowed for similar service cartridge performance from a significantly shorter, smaller case with less case capacity. military 30-06 Springfield service cartridge. The later T65 iterations were lengthened compared to the original T65 case and provided a ballistic performance roughly equal to the U.S. The experimental cases were made from standard 30-06 Springfield cases which gave a little less capacity than standard 300 Savage cases because the Frankford Arsenal cases had slightly thicker case walls. The original experimental case design by the Frankford Arsenal was designated the T65 and was similar to the 300 Savage case, but with less taper. Military that resulted in the development of the T65 series of experimental cartridges. The 308 Winchester is a smokeless powder rimless bottle necked rifle cartridge.ĭuring the 1940s, the 300 Savage became the basis for experiments on behalf of the U.S. Test barrel length: 24 in (26 in for Lapua)
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