Unsurprisingly, the 9 pound O/U is a popular platform as a dedicated clays gun, even though heavy payload shells are. Recoil Energy Due to Bullet Recoil Energy Due to Bullet. In Using the two equations to calculate recoil for a 16 gauge, 6.5 lb gun using the typical 1 ounce, 1165 ft/second load, the Lyman formula estimates recoil (19.7 lbs) at 3 ft/lbs higher than the GunCalc calculator (16.7 lbs). 0-kg shell at 480 m/s at an angle of above the horizontal. Lyman Handbook #49, Appendix B offers an equation which, although similar, is not identical. 33 Nosler, introduced by Nosler between 20.The speed of the gases varies from zero at the breech to the bullet's velocity at the muzzle. More examples of the popularity of creating small-bore, high-velocity cartridges based on the. 460 G&A, used by Jeff Cooper in his "baby" rifles, are all based on. 400 Tembo by Velocity USA, and the once-famous. 416 Rigby) of the proprietary cartridges of Dakota Arms such as. Both the Winchester and Remington cartridges have also spawned many current wildcats, like the popular. Also, the Winchester Short Magnum (WSM) and the Winchester Super Short Magnum (WSSM) families are believed to derive from the 404 Jeffery case. 404 Jeffery case are the Remington Ultra Magnum (RUM) cartridge family, which in turn spawned the Remington Short Action Ultra Magnum (RSAUM) cartridges. The rimless design also contributes to smooth feeding from the box magazine of bolt-action rifles. This case has no belt, unlike many other magnum cartridges, which can be desirable for handloading because of possible problems with case head separation with repeated reloading of belted magnum cartridges. 404 case has seen a resurgence in use by wildcatters. In 1913, Jeffery further necked down the. 404 case, giving it greater taper and necking it down to. Fired at 2,150 fps, the cartridge now outperforms most of its peers with a relatively mild recoil due to the efficient design of the cartridge.Ĭommercial and wildcat variations The increase in bullet weight and sectional density improves the ballistics of the. 404 Jeffery sporting ammunition.Ī more recent development by Norma of Sweden has been the introduction of 450 gr ammunition under their African PH banner. Several ammunition makers like Kynoch, Norma, Federal, and Hornady are offering. Renewed interest in heavy game rifles combined with political stability in Africa has led to a resurgence in African hunting and the rifles suited for it. Winchester also started a marketing campaign at about this time called "Winchester in Africa" with much success. 458 Winchester Magnum in 1956 in the Winchester Model 70 bolt-action rifle provided an affordable alternative to the big Nitro Express rifles and cartridges. 404 Jeffery and many other British cartridges. This condition was mostly the result of the closing of the British ammunition giant Kynoch, which was the primary manufacturer of the. By the 1960s it had all but disappeared from common firearm usage. As the British Empire began to shrink, many of the popular British big-bore cartridges also dwindled in popularity, and the. 404 Jeffery was very popular with hunters in Africa and saw significant use in both British and German colonies. 416 Rigby, rifles that are more expensive. 404 Jeffery but at the price of greater recoil and, in the case of the. These cartridges exceed the ballistic performance of the. 416 in (10.57 mm) bullets of 400 gr (26 g) at 2,400 feet per second (730 m/s) with a muzzle energy of approximately 5,000 foot-pounds force (6,800 N⋅m). 404 Jeffery was popular with hunters and game wardens in Africa because of its good performance with manageable recoil. It is very effective on large game and is favored by many hunters of dangerous game. 450/400 Nitro Express 3-inch in bolt-action rifles. Jeffery & Co to duplicate the performance of the. It was designed in 1905 by London based gunmaker W.J. The cartridge is standardized by the C.I.P. 404 Jeffery is a rifle cartridge designed for hunting large, dangerous game animals, such as the " Big Five" (elephant, rhino, cape buffalo, lion and leopard) of Africa. Test barrel length: 610 millimetres (24 in)
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