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.460 Weatherby Magnum
The .460 Weatherby Magnum is a belted, bottlenecked rifle cartridge, developed by Roy Weatherby in 1957. The cartridge is based on the .378 Weatherby Magnum necked up to accept the bullet. The original .378 Weatherby Magnum parent case was inspired by the .416 Rigby. The .460 Weatherby Magnum was designed as an African dangerous game rifle cartridge for the hunting of heavy, thick skinned dangerous game. Prior to the Weatherby's arrival, the .600 Nitro Express had been the most powerful cartridge but the .460 Weatherby Magnum eclipsed this, and was the world's most powerful commercially available sporting cartridge for 29 years until the advent of the .700 Nitro Express. The .460 launches a bullet at a chronographed velocity of from a barrel, measuring of muzzle energy.''Weatherby Guide'' 12th Ed. 1962 Cartridge history Roy Weatherby had expected the .378 Weatherby Magnum to make some headway in the African continent but believed that his cartridge was being bypass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifle
A rifle is a long-barreled firearm designed for accurate shooting, with a barrel that has a helical pattern of grooves (rifling) cut into the bore wall. In keeping with their focus on accuracy, rifles are typically designed to be held with both hands and braced firmly against the shooter's shoulder via a buttstock for stability during shooting. Rifles are used extensively in warfare, law enforcement, hunting, shooting sports, and crime. The term was originally ''rifled gun'', with the verb ''rifle'' referring to the early modern machining process of creating groovings with cutting tools. By the 20th century, the weapon had become so common that the modern noun ''rifle'' is now often used for any long-shaped handheld ranged weapon designed for well-aimed discharge activated by a trigger (e.g., personnel halting and stimulation response rifle, which is actually a laser dazzler). Like all typical firearms, a rifle's projectile (bullet) is propelled by the contained deflag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hippopotamus
The hippopotamus ( ; : hippopotamuses or hippopotami; ''Hippopotamus amphibius''), also called the hippo, common hippopotamus, or river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus (''Choeropsis liberiensis'' or ''Hexaprotodon liberiensis''). Its name comes from the ancient Greek for "river horse" (). Aside from elephants and rhinos, the hippopotamus is the largest land mammal. It is also the largest extant land artiodactyl. Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, the closest living relatives of the hippopotamids are cetaceans ( whales, dolphins, porpoises, etc.), from which they diverged about 55 million years ago. Hippos are recognisable for their barrel-shaped torsos, wide-opening mouths with large canine tusks, nearly hairless bodies, pillar-like legs, and large size: adults average fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildcat Cartridge
A wildcat cartridge, often shortened to wildcat, is a custom cartridge for which ammunition and/or firearms are not mass-produced. These cartridges are often created in order to optimize a certain performance characteristic (such as the power, size, or efficiency) of an existing commercial cartridge. Developing and using wildcat cartridges does not generally serve a purpose in military or law enforcement; it is more a hobby for serious shooting, hunting, gunsmithing, and handloading enthusiasts, particularly in the United States. There are potentially endless varieties of wildcat cartridge: one source of gunsmithing equipment has a library of over 6,000 different wildcat cartridges for which they produce equipment such as chamber reamers. Development of a wildcat Often, wildcats are commercially sold rounds that have been modified in some way to alter the cartridge's performance. Barrels for the caliber are originally manufactured by gunsmiths specializing in barrel making. Gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
577 Nitro Express
The .577 Nitro Express is a large-bore centerfire rifle cartridge designed for the purpose of hunting large game such as elephant. This cartridge is used almost exclusively in single-shot and double express rifles for hunting in the Tropics or hot climates in general and is a cartridge associated with the golden age of African safaris and Indian shikars. Design The .577 Nitro Express is a straight rimmed calibre cartridge designed for use in single-shot and double rifles. It has been made in three case lengths based on their respective black-powder .577 Black Powder Express cartridges. 2-inch The .577 Nitro Express is a conversion of the .577 Black Powder Express -inch, it fires a projectile at over . Never as popular as the 3-inch version, today it is only available by special order. 3-inch The .577 Nitro Express is a conversion of the .577 Black Powder Express 3-inch, it fires a projectile at over . This cartridge was to become the most popular of the three and a standa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
505 Gibbs
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 of water. This cartridge was originally loaded with of cordite and bullet at for 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 for the cartridge. 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 while most other .50 caliber bullets have diameters of . Barnes Bullets and Woodleigh Bullets are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
500 Nitro Express
The .500 Nitro Express is a rifle cartridge designed for hunting large and dangerous game animals in Africa and India. This cartridge was primarily designed for use in double rifles though various single shots were produced on the Farquarson action and at least one major company (Heym) produced it in bolt-action configuration. It was commonly available in two lengths: a and a version. History and origins The nomenclature .500 Nitro Express refers to one of three specific loading of the .500 Express case. The other loadings are now called (for the sake of clarity) the .500 Black Powder Express (BPE) and .500 Nitro for Black Powder (Nitro for BPE). The names given to these loadings are of more modern origin to help one differentiate between them. The original cartridge was simply known as the .500 Express. The cartridge is one of the original Express cartridges which originated in the black powder era and made the transition into the smokeless powder era. The .500 Black Powder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
500 Jeffery
The .500 Jeffery is a big-game rifle cartridge that first appeared around 1920, and was originally introduced by the August Schuler Company, a German firm, under the European designation "12.7×70mm Schuler" or ".500 Schuler". When offered by the famed British outfitter W.J. Jeffery & Co, it was renamed the .500 Jeffery so as to be more palatable to British hunters and sportsmen following World War One. History The .500 Jeffery was introduced to bring firepower comparable to the .505 Gibbs into a standard-sized 1898 Mauser action as used with the 8x57mm and 7x57mm cartridges. The Gibbs and .416 Rigby cartridges required oversized magnum Mauser actions. To shoehorn a large round into the 98 action required a rebated rim. When introduced, the .500 Jeffery was technically rated as the most powerful rifle cartridge although in reality not quite up to .505 Gibbs' performance. The .505 Gibbs, with greater capacity, can be loaded far in excess of the .500 Jeffery today. Ammunition a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
375 H&H Magnum
__NOTOC__ Year 375 ( CCCLXXV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year after the Consulship of Augustus and Equitius (or, less frequently, year 1128 ''Ab urbe condita''). The denomination 375 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * November 17 – Emperor Valentinian I concludes an enduring peace with the Alamanni in Germany, then marches into Illyricum to repel an invasion of the Quadi and the Sarmatians on the Danube frontier. While negotiating with the Quadi, Valentinian, age 54, becomes so enraged that he dies in a fit of apoplexy at Brigetio (Hungary). Extreme cruelty has marked his 11-year reign, but he has also founded schools and provided physicians to serve the poor of Constantinople. * The Quadi accept an uneasy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point-blank Range
Point-blank range is any distance over which a certain firearm can hit a target without the need to compensate for bullet drop, and can be adjusted over a wide range of distances by sighting in the firearm. If the bullet leaves the barrel parallel to the sight, the bullet, like any object in flight, is pulled downwards by gravity, so for distant targets, the shooter must point the firearm above the target to compensate. But if the target is close enough, bullet drop will be negligible so the shooter can aim the gun straight at the target. If the sights are set so that the barrel has a small upward tilt, the bullet starts by rising and later drops. This results in a weapon that hits too low for very close targets, too high for intermediate targets, too low for very far targets, and point blank at two distances in between. For a .270 Winchester, as an example, the bullet first crosses the line of sight at about 23 metres (25 yards) as it is rising and has a maximum impact above t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
