.505 Gibbs

Rifle cartridge .505 Gibbs 404 Jeffery Cartridge-01.jpg 300px L-R: .30-06 Springfield, .375 H&H, .404 Jeffery, .505 Gibbs England Rifle George Gibbs 1910 Gibbs 1911–present Rimless, bottleneck .505 .494 .535 .600 .640 .640 .065 3.150 3.850 178 39000 1 in 16 (406 mm) magnum large rifle 540 Norma solid 2300 6345 600 Woodleigh FMJ 2100 5877 600 Woodleigh soft point 2100 5877 24 in mm Norma.505 Magnum Gibbs http://www.norma.cc/en/Products/Hunting/505-Magnum-Gibbs/ Norma 17 March 2022 https://web.archive.org/web/20131002062523/http://www.norma.cc/en/Products/Hunting/505-Magnum-Gibbs/ 2 October 2013 dead The .505 Gibbs cartridge was designed by George Gibbs in 1911. The cartridge was originally known as the .505 Rimless Nitro Express. The C.I.P. refers to the cartridge as the 505 Mag. Gibbs in their publications. It is a .50 caliber (12.8 mm) rimless bottlenecked cartridge intended for magazine-fed rifles. General information The .505 Gibbs has a case capacity of 178 gr g of water.http://www.huntnetwork.net/modules/wfsection/html/505magnum.pdf Harland Richard The .505 magnum by George Gibbs African Outfitter AprilMay 2008 2010-08-12 2022-03-03 https://web.archive.org/web/20220303203844/http://www.huntnetwork.net/modules/wfsection/html/505magnum.pdf dead This cartridge was originally loaded with 90 gr g on of cordite and 525 gr g on bullet at 2300 ft/s m/s on for 6166 ft.lbf J on of kinetic energy. While the .505 Gibbs has a greater case capacity than most modern cartridges, it is loaded to lower pressures. The C.I.P. recommends a pressure of 2700 bar psi on for the cartridge.CIP As .505 Gibbs was intended for hunting dangerous game in tropical environments, and due to the temperature sensitivity of cordite, the lower pressures provide a greater safety and reliability margin. The .505 Gibbs has a unique bullet diameter of .505 in mm on while most other .50 caliber bullets have diameters of .510 in mm on. Barnes Bullets and Woodleigh Bullets are a few of the bullet manufacturers who produce component bullets for reloading in this caliber. Woodleigh Bullets does not recommend impact velocities of over 2200 ft/s m/s on for their .505 caliber 600 gr weldcore bullets.Bullet Specifications, Dimensions & Details http://www.woodleighbullets.com.au/index.php/bullet-lists/traditional/468q-700q Woodleigh Bullets 12 August 2010 https://web.archive.org/web/20100703071336/http://www.woodleighbullets.com.au/index.php/bullet-lists/traditional/468q-700q 2010-07-03 dead George Gibbs Ltd. (England) continues to manufacture .505 Gibbs rifles; other premium dangerous game rifle makers, such as Hartmann & Weiss and Westley Richards build expensive and reliable .505 Gibbs rifles on Mauser 98 actions. Ceska Zbrojovka (CZ) no longer manufactures the Safari Classics rifle for this cartridge (Discontinued 2020) .http://cz-usa.com/products/by-brand/safari-classics/ StackPath Doumoulin Herstal SA of Belgium offers the cartridge in their White Hunter model.http://www.dumoulin-herstal.com/en/white_hunter.htm White Hunter 2004 dumoulin-herstal.com Dumoulin Herstal 9 December 2010 https://web.archive.org/web/20100807095422/http://www.dumoulin-herstal.com/en/white_hunter.htm 2010-08-07 dead As of 2019, Federal, Kynoch, Norma, and Swift are offering factory loaded ammunition in .505 Gibbs. Bullets for reloading are available from Barnes, Cutting Edge Bullets, North Fork Bullets, and Woodleigh Bullets. Design and specifications The .505 Gibbs is one of the most voluminous cases designed. The large volume was required as the cartridge was designed to burn cordite as its propellant. The C.I.P. has published specifications for the cartridge. 500px|alt=C.I.P compliant schematic of the .505 Magnum Gibbs|C.I.P compliant schematic of the .505 Magnum Gibbs - all dimensions in mm (in)) The C.I.P. recommends that commencement of rifling begin at 8.97 mm in on. Bore diameter is given as 12.55 mm in on and groove diameter is 12.80 mm in on. The C.I.P. recommends a five groove barrel contour with each groove having an arc length of 5.33 mm in on and a twist rate of one revolution in 406 mm in on. The recommended pressure for the .505 Gibbs is 2700 bar psi on. Sporting use The .505 Gibbs is a niche cartridge designed for hunting heavy, thick-skinned dangerous game animals, such as cape buffalo, elephant, and rhino. In literature The cartridge's claim to fame was its use by the fictional character, Robert Wilson, the hunter of Ernest Hemingway's short story "The Short Happy Life of Francis Macomber". See also .338 Xtreme .408 Chey Tac .50 BMG .500 Jeffery .500 Nitro Express .500 No. 2 Express .577/.500 Magnum Nitro Express .577 Tyrannosaur 12 mm caliber Hartmann & Weiss List of rifle cartridges References Current African Cartridges: The 505 Gibbs Barnes, Frank C. (2006) "505 Gibbs" Cartridges of the World 11th Ed.Iola WI. Skinner p. 403 External links AccurateReloading.Com on the 505 Gibbs Vigilance Rifles - makers of the only semi-automatic rifle chambered in 505 Gibbs Current African Cartridges: the .505 Gibbs gibbsgunmakers.com Category:Pistol and rifle cartridges Category:British firearm cartridges Category:George Gibbs cartridges