[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/308x1-5-inch-barnes-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki24\/308x1-5-inch-barnes-wikipedia\/","headline":".308\u00d71.5-inch Barnes – Wikipedia","name":".308\u00d71.5-inch Barnes – Wikipedia","description":"before-content-x4 From Wikipedia, the free encyclopedia after-content-x4 Wildcat cartridge based on the .308 Winchester .308\u00d71.5″ Barnes Type Rifle Place\u00a0of\u00a0origin USA","datePublished":"2017-03-06","dateModified":"2017-03-06","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki24\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/a\/a2\/308%C3%971.5-inch_Barnes_metallic.jpg\/270px-308%C3%971.5-inch_Barnes_metallic.jpg","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/a\/a2\/308%C3%971.5-inch_Barnes_metallic.jpg\/270px-308%C3%971.5-inch_Barnes_metallic.jpg","height":"99","width":"270"},"url":"https:\/\/wiki.edu.vn\/en\/wiki24\/308x1-5-inch-barnes-wikipedia\/","wordCount":1705,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopedia       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Wildcat cartridge based on the .308 Winchester.308\u00d71.5″ BarnesTypeRiflePlace\u00a0of\u00a0originUSADesignerFrank BarnesDesigned1961Variants.30 BRParent\u00a0case.308 Winchester (7.62\u00d751mm NATO)Case\u00a0typeRimless bottleneckedBullet\u00a0diameter.308[1]Neck\u00a0diameter.338[1]Shoulder\u00a0diameter.450[1]Base\u00a0diameter.466[1]Rim\u00a0diameter.470[1]Rim\u00a0thickness.048[1]Case\u00a0length1.500[1]Overall\u00a0length2.05\u00a0in (52\u00a0mm)[1]Case capacity38.0\u00a0gr H2O (2.46\u00a0cm3)Rifling\u00a0twist12Primer\u00a0typeLarge rifle[1]Maximum pressureApproximately 60,000\u00a0psi (4,100\u00a0bar)The .308\u00d71.5″ Barnes is a wildcat cartridge based on the .308 Winchester (7.62\u00d751mm NATO). The cartridge is similar to the 7.62\u00d739mm Russian (M43) cartridge though it outperforms the Soviet cartridge.[2] It was designed by Frank C. Barnes in March 1961 by shortening the .308 Winchester to 1.5\u00a0in (38\u00a0mm) and giving it a shoulder angle of 20\u00b0 (\u03b1=40\u00b0) similar to the parent cartridge.[citation needed]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Table of ContentsHistory[edit]Similar cartridges[edit]References[edit]Further reading[edit]External links[edit]History[edit]The first rifles commissioned for the developmental work by Barnes for the .308\u00d71.5″ cartridge were a Swedish Model 96 Mauser with a 1 in 12 (305\u00a0mm) twist built by Les Corbet and a Remington Rolling Block with a 1 in 10 (254\u00a0mm) twist built by P.O. Ackley. Due to the weights of the bullet and the performance of the cartridge, the 1 in 12 twist became the standard by consensus.Similar cartridges[edit]Apart from experimenting with .308\u00d71.75″, the legacy of the Barnes cartridge is found in its progeny cartridges. The .308\u00d71.5″ caused a wildcatting craze,[citation needed] which had individuals necking the cartridge down to .224 (5.56\u00a0mm), .243 (6\u00a0mm), .264 (6.5\u00a0mm), .284 (7\u00a0mm) and necking up to .338 (8.5\u00a0mm) and .375 (9.5\u00a0mm). Due to the cartridges\u2019 efficiency and accuracy, many of these cartridges, such as the .22 BR, 6mm BR, 6mm BR Norma, 7mm BR, and .30 BR, went on to become popular benchrest cartridges and some of these were adopted by mainstream ammunition manufacturers. The .308\u00d71.5″ was one of the original short fat cartridge designs, having a length to width ratio of 3.17. The short fat cartridge design is considered to promote efficiency and shot to shot consistency.       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4The .308\u00d71.5″ Barnes cartridge is comparable to cartridges such as the 7.62\u00d739mm and the .30-30 Winchester. The .308\u00d71.5″ is capable of launching a 150\u00a0gr (9.7\u00a0g) bullet at 2,500\u00a0ft\/s (760\u00a0m\/s). While the Barnes and 7.62\u00d739 are similar length, the Barnes has a greater body girth, which provides a greater propellant capacity which in turn contributes to its performance advantage.[citation needed] While the .30-30 Winchester has about a 16% greater capacity over the Barnes cartridge, the .30-30 has a SAAMI-recommended pressure limit of 42,000\u00a0psi (2,900\u00a0bar). For this reason, most factory .30-30 ammunition loaded with a 150\u00a0gr (9.7\u00a0g) bullet achieves a mere 2,390\u00a0ft\/s (730\u00a0m\/s). Furthermore, the Barnes cartridge is capable of launching heavier bullets than the 7.62\u00d739 and has the advantage of using spitzer bullets and is chambered in strong bolt-action rifles, whereas the .30-30 is commonly loaded with round-nose or flat-nose bullets due to the fact that it is chambered in lever-action rifles with tubular magazines.The .308\u00d71.5″ Barnes was intended as a short range deer cartridge that could also be used as a varmint and predator cartridge. Loaded with the 150\u00a0gr (9.7\u00a0g) cartridge, it is capable of taking deer-sized game out to 150\u00a0yd (140\u00a0m). For predator and varmint hunting, bullets weighing 90\u2013125\u00a0gr (5.8\u20138.1\u00a0g) are commonly used.References[edit]Further reading[edit]De Haas, Frank (2003). Bolt Action Rifles – 4th Edition.Donnelly, John J. (1987). The Handloader’s Manual of Cartridge Conversions.Howell, Ken (1995). Designing and Forming Custom Cartridges.Barnes, Frank C. (1997) [1965].  McPherson, M.L. (ed.). Cartridges of the World (8th\u00a0ed.).External links[edit]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/308x1-5-inch-barnes-wikipedia\/#breadcrumbitem","name":".308\u00d71.5-inch Barnes – Wikipedia"}}]}]