.404 Jeffery

To duplicate the performance of the.450/400 Nitro Express 3-inch in bolt-action rifles. The.404 Jeffery fires a bullet.422 in in diameter of either 300 gr with a muzzle velocity of 2600 ft/s and muzzle energy of 4500 ft.lbf or 400 gr with a muzzle velocity of 2150 ft/s and 4100 ft.lbf of energy. It is very effective on large game and is favored by many hunters of dangerous game. The.404 Jeffery was popular with hunters and game wardens in Africa because of its good performance with manageable recoil. These cartridges exceed the ballistic performance of the.404 Jeffery but at the price of greater recoil and, in the case of the.416 Rigby, rifles that are more expensive.

• Name —.404 Jeffery • Origin — England • Type — Rifle • Designer — W. J. Jeffery & Co. • Design Date — 1905 • Production Date — 1905–present • Is Si Specs — yes • Case Type — Rimless, bottleneck • Bullet — 10.72 • Land — 10.46 • Neck — 11.48 • Shoulder — 13.46 • Base — 13.84 • Rim Dia — 13.79 • Rim Thick — 1.27 • Case Length — 73.02 • Length — 89.66 • Case Capacity — 7.32 • Rifling — 1 in 16.5 in • Primer — Large rifle magnum • Max Pressure — 365.00 • Pressure Method — C.I.P. • Bw1 — 300 • Btype1 — SP • Vel1 — 2600 • En1 — 4600 • Bw2 — 400 • Btype2 — FMJ/SP • Vel2 — 2125 • En2 — 4020 • Bw3 — 400 • Btype3 — FMJ/SP (modern) • Vel3 — 2300 • En3 — 4700 • Bw4 — 450 • Btype4 — FMJ/SP • Vel4 — 2150 • En4 — 4620 • Test Barrel Length — 610 mm • Balsrc — Cartridges of the World, Ammo Encyclopedia, Kynoch & Norma

Originally the.404 Jeffery was very popular with hunters in Africa and saw significant use in both British and German colonies. As the British Empire began to shrink, many of the popular British big-bore cartridges also dwindled in popularity, and the.404 Jeffery was one of them. By the 1960s it had all but disappeared from common firearm usage. This condition was mostly the result of the closing of the British ammunition giant Kynoch, which was the primary manufacturer of the.404 Jeffery and many other British cartridges. The introduction of the.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. Winchester also started a marketing campaign at about this time called "Winchester in Africa" with much success. 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. Several ammunition makers like Kynoch, Norma, Federal, and Hornady are offering.404 Jeffery sporting ammunition. A more recent development by Norma of Sweden has been the introduction of 400 gr & 450 gr ammunition under their African PH banner. The increase in bullet weight and sectional density improves the ballistics of the.404 Jeffery. With velocities of 2325 ft/s & muzzle energy of 4802 ft.lbf (400 gr) and 2150 ft/s & 4620 ft.lbf (450 gr), the cartridge is almost as powerful as the.416 Rigby, with a relatively mild recoil due to the efficient design of the cartridge.

In 1908, W. J. Jeffery & Co. created the.333 Jeffery by shortening the.404 case, giving it greater taper and necking it down to.333 in. In 1913, Jeffery further necked down the.333 Jeffery to.288 inches, creating the.280 Jeffery. In the early 1990s, the.404 case has seen a resurgence in use due to an renewed interest in African hunting, and for use by wildcatters. 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. The rimless design also contributes to smooth feeding from the box magazine of bolt-action rifles. Some common commercial children of the.404 Jeffery case are the Remington Ultra Magnum (RUM) cartridge family, which in turn spawned the Remington Short Action Ultra Magnum (RSAUM) cartridges. Also, the Winchester Short Magnum (WSM) and the Winchester Super Short Magnum (WSSM) families are derived from the.404 Jeffery case. Both the Winchester and Remington cartridges have also spawned many current wildcats, like the popular.338 Edge. All but one (.450 Dakota, based on.416 Rigby) of the proprietary cartridges of Dakota Arms such as.375 Dakota, and the.400 Tembo by Velocity USA, and the once-famous.460 G&A, used by Jeff Cooper in his "baby" rifles, are based on.404 Jeffery. More examples of the popularity of creating small-bore, high-velocity cartridges based on the.404 Jeffery design are the.26 Nosler,.28 Nosler,.30 Nosler, and the.33 Nosler, introduced by Nosler between 2013 and 2016.