.270 Weatherby Magnum

Rifle cartridge .270 Weatherby Magnum Munit03.jpg 300px .270 Weatherby 2nd from left USA Rifle / Hunting Roy Weatherby 1943 Weatherby .300 H&H Magnum Belted, bottleneck .277 in (7.0 mm) .303 .492 .512 .531 .220 2.55 3.25 1-10" Large rifle magnum 110 HP 3528 3041 130 X 3338 3217 140 BT 3242 3268 150 SBT 3161 3329 26" Accurate Powder http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata(Rifle)/277Cal(6.8mm)/270%20Weatherby%20Magnum%20page%20237.pdf .270 Weatherby data from Accurate Powder 2007-08-18 https://web.archive.org/web/20070928011943/http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata(Rifle)/277Cal(6.8mm)/270%20Weatherby%20Magnum%20page%20237.pdf 2007-09-28 dead The .270 Weatherby Magnum was the first belted magnum based on the .300 H&H Magnum to be developed by Roy Weatherby in 1943. Speer Bullets Reloading Manual #14 340 Speer Bullets Speer 2009 978-0-9791860-0-4 The cartridge is short enough to function in standard-length long actions with a brass length of 2.549" or 64.74mm and an overall length of about 3.295". History and design The development of the .270 Weatherby Magnum led to the characteristic double-radius shoulders belted magnum case, proprietary of the Weatherby Magnum line of cartridges. Particularly, the .270 Wby Mag the result of necked down to accommodate the .277 in bullets and bringing down the case to fit a standard length action.Carter Aaron March 5, 2015 .270 Wby. Mag.: The Original Weatherby https://www.americanrifleman.org/content/270-wby-mag-the-original-weatherby/ americanrifleman.org Like most Weatherby cartridges, the .270 Weatherby was standardized by the Small Arms and Ammunitions Manufacturers Institute in 1994, and it has a SAAMI maximum pressure limit of 62,500 psi. The first Weatherby cartridge to be used in Africa was the .270 Weatherby on a jackal on June 8, 1948. Nosler, Inc. Nosler Reloading Guide http://www.nosler.com 5th 2002 Nosler, Inc. Bend, OR, USA 219–224 Performance Given its higher pressure and larger case which holds more powder than the .270 Winchester, the .270 Weatherby has about 200 ft/s faster performance with any particular bullet weight.Sillars Jordan April 21, 2022 CALIBER BATTLE: .270 WBY. MAG. VS. .270 WIN. https://www.themeateater.com/hunt/firearm-hunting/caliber-battle-270-wby-mag-vs-270-win It also outperforms newer cartridge designs such as the .270 WSM and the 6.8 Western. This performance comes at the cost of more recoil and barrel heat. In addition, a long barrel is necessary to take advantage of extra powder to gain maximum velocity. The cartridge is excellent at long-range hunting, but is not well suited to high-volume shooting such as varmint hunting. Barnes Frank C. Skinner, Stan Cartridges of the World 11th 1965 2006 Gun Digest Books Iola, WI, USA 43 0-89689-297-2 For those handloading their own cartridges, this is an easy round to load. It does best with full-power loads and is not well-suited for reduced loads.Ackley P. O. Loading Data - Rifle Ackley P. O. P. O. Ackley Handbook for Shooters and Reloaders 1962 Publishers Press Salt Lake City, Utah 5158681 https://archive.org/details/bwb_S0-EFM-965/ registration 384–385 Ed Weatherby, son of Roy Weatherby says that the .270 Weatherby is his favorite caliber. As he puts it, there just isn't a better long-range deer caliber. He goes on to mention that it is also quite effective for elk, and pronghorn. Sporting use Due to its flat trajectory result of a combination of a high muzzle velocity and ballistic coefficient, the .270 Wby Mag makes an excellent cartridge option for mid sized big game out to considerable ranges and the fact of being chambered in standard length actions allows the possibility of manufacturing a light mountain rifle..270 Weatherby Magnum https://www.ballisticstudies.com/Knowledgebase/.270+Weatherby+Magnum.html Terminal Ballistic Studiesthumb|right| .308 Winchester (left) .270 Weatherby Magnum (center) .223 Remington (Right) See also List of rifle cartridges Table of handgun and rifle cartridges 6.8 mm caliber References Category:Weatherby Magnum rifle cartridges Category:Pistol and rifle cartridges Category:Magnum rifle cartridges