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Double Rifle
The double rifle, also known as a double-barreled rifle, is a rifle with two barrels mounted parallel to each other. Synonymous with big game hunting found primarily in Africa and India, the double rifle is a purely sporting weapon with no military heritage. Design The double rifle is usually handcrafted and is considered by many to be the pinnacle of sporting rifle design. It is not designed for long-range accuracy but instead for the security of an immediate second shot. Double rifles are similar to Double barrel shotguns. Action As with double-barrelled shotguns, modern double rifles are all made with either sidelock or boxlock actions, although occasionally old hammer rifles can be found. The majority of double rifles have been built on the boxlock actions as it is a simple design with few parts that can fail and consequently it has an outstanding reputation for reliability. The sidelock action, with its lockwork operating behind the main action body, has exceptional inher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoothbore
A smoothbore weapon is one that has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars. History Early firearms had smoothly bored barrels that fired projectiles without significant spin. To minimize inaccuracy-inducing tumbling during flight, their projectiles required an aerodynamically uniform shape, such as a sphere. However, surface imperfections on the projectile and/or the barrel will cause even a sphere to rotate randomly during flight, and the Magnus effect will curve it off the intended trajectory when spinning on any axis not parallel to the direction of travel. Rifling the bore surface with spiral grooves or polygonal valleys imparts a stabilizing gyroscopic spin to a projectile that prevents tumbling in flight. Not only does this more than counter Magnus-induced drift, but it allows a longer, more streamlined round with greater sectional density to be fired from the same caliber barrel, improvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinfire Cartridge
A pinfire cartridge is an obsolete type of metallic firearm cartridge in which the priming compound is ignited by striking a small pin which protrudes radially from just above the base of the cartridge. Invented by Frenchman Casimir Lefaucheux in the 1830s but not patented until 1835, it was one of the earliest practical designs of a metallic cartridge. Its history is closely associated with the development of the breechloader which replaced muzzle-loading weapons. History The Swiss gun maker Samuel Joannes Pauly patented the first breechloading cartridge in 1812. This was for use in a shotgun with fixed barrels which was loaded by lifting a breech block on the top. French gun maker Henri Roux attempted to improve this cartridge in the 1820s but a constantly primed cartridge was felt by many to be too dangerous and many breechloading guns reverted to using an unprimed cartridge. This was fired by a separate percussion cap which was used on the still dominant muzzle-loading gun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferguson Rifle
The Ferguson rifle was one of the first breech-loading rifles to be put into service by the British military. It fired a standard British carbine ball of .615" calibre and was used by the British Army in the American Revolutionary War at the Battle of Brandywine in 1777, and possibly at the Siege of Charleston in 1780. Its superior firepower was unappreciated at the time because it was too expensive and took longer to produce – the four gunsmiths making Ferguson's Ordnance Rifle could not make 100 in 6 months at four times the cost per arm of a musket. Details The breech of the weapon is closed by 11 starting threads on a tapered screw, and the trigger guard serves as the crank to rotate it. One complete turn dropped the screw low enough to drop a round ball into the exposed breech followed by a slight overcharge of powder, which was then sheared to the proper charge by the screw as it closed the breech. Since the weapon was loaded from the breech, rather than from the muzzle, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breech-loading Weapon
A breechloader is a firearm in which the user loads the ammunition ( cartridge or shell) via the rear (breech) end of its barrel, as opposed to a muzzleloader, which loads ammunition via the front ( muzzle). Modern firearms are generally breech-loading – except for replicas of vintage weapons. Early firearms before the mid-19th century were almost entirely muzzle-loading. Mortars and the Russian GP-25 grenade launcher are the only muzzleloaders remaining in frequent modern usage. However, referring to a weapon specifically as breech loading is mostly limited to single-shot or otherwise non-repeating firearms, such as double-barreled shotguns. Breech-loading provides the advantage of reduced reloading time, because it is far quicker to load the projectile and propellant into the chamber of a gun/cannon than to reach all the way over to the front end to load ammunition and then push them back down a long tube – especially when the projectile fits tightly and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elephant Hunting
Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae and the order Proboscidea. The order was formerly much more diverse during the Pleistocene, but most species became extinct during the Late Pleistocene epoch. Distinctive features of elephants include a long proboscis called a trunk, tusks, large ear flaps, pillar-like legs, and tough but sensitive skin. The trunk is used for breathing, bringing food and water to the mouth, and grasping objects. Tusks, which are derived from the incisor teeth, serve both as weapons and as tools for moving objects and digging. The large ear flaps assist in maintaining a constant body temperature as well as in communication. African elephants have larger ears and concave backs, whereas Asian elephants have smaller ears, and convex or level backs. Elephants are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4 Bore
Four bore or 4 bore is a mostly obsolete black powder caliber of the 19th century, used for the hunting of large and potentially dangerous game animals. The specifications place this caliber between the larger two bore and the lesser six bore. This caliber was the quintessential elephant gun caliber of the black powder safari rifles. The caliber was also used for the Coffman cartridges used for starting large aero engines such as the Rolls-Royce Griffon as used in the later Marks of Supermarine Spitfire. Specifications The name, derived from an old English practice of bore measurements in gun-making which refers to a nominally 4-gauge bore, that is, a bore diameter that would accommodate a pure lead round ball weighing of a pound. This would imply a bore diameter of , however in practice the bore diameter varied greatly as, in muzzle loader days, shotgun gauges were custom made and often differed from the actual bore measurements. Commonly, 4 bores were closer to 0.935–0.955 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6 Bore
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second smallest composite number, behind 4; its proper divisors are , and . Since 6 equals the sum of its proper divisors, it is a perfect number; 6 is the smallest of the perfect numbers. It is also the smallest Granville number, or \mathcal-perfect number. As a perfect number: *6 is related to the Mersenne prime 3, since . (The next perfect number is 28.) *6 is the only even perfect number that is not the sum of successive odd cubes. *6 is the root of the 6-aliquot tree, and is itself the aliquot sum of only one other number; the square number, . Six is the only number that is both the sum and the product of three consecutive positive numbers. Unrelated to 6's being a perfect number, a Golomb ruler of length 6 is a "perfect ruler". Six is a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8 Bore
The 8 bore, also known as the 8 gauge, is an obsolete caliber used commonly in the 19th-century black-powder firearms. Design An 8 bore is a caliber firearm. Historically it was used to fire solid projectiles from smoothbores, rifles, and partially rifled ball and shot guns, as well as shot from muzzle-loading and breech-loading shotguns. Later breech loaders were designed to fire cartridges. History Shot loadings The 8 bore was a popular wildfowling calibre both in muzzleloaders and later cartridge shotguns. 8 bore cartridges were available in multiple lengths including 3-inch, 3¼-inch, 3¾-inch and 4-inch. Solid loadings When the Dutch established the Dutch Cape Colony in the 17th century, they soon discovered their muskets were hopelessly inadequate against local game. Within a century the most popular Boer firearm was a flintlock smoothbore musket of about 8 bore with a 5–6 foot long barrel. Early British settlers of the Cape Colony in the 18th century also found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Purdey
James Purdey & Sons, or simply Purdey, is a British gunmaker based in London, England specialising in high-end bespoke sporting shotguns and rifles. Purdey holds three Royal Warrants of appointment as gun and rifle makers to the British and other European royal families. History James Purdey founded James Purdey & Sons Limited in London, England in 1814, locating his business on Princes Street. Prior to starting out on his own, Purdey worked as head stocker for Joseph Manton, the foremost gunmaker of his time. In 1826 the company moved from the Princes Street location to Manton's former premises in Oxford Street. The founder's son, James Purdey the Younger, took over the running of the company from his father in 1858. James the Younger saw rapid change in the development and design of guns and rifles during his lifetime, essentially moving from muzzle loading flintlocks in the 1820s to breech loading hammerless ejectors by the 1880s. James the Younger was always at the fore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Express (weaponry)
The term ''express'' was first applied to hunting rifles and ammunition beginning in the mid-19th century, to indicate a rifle or ammunition capable of higher than typical velocities. The early express cartridges used a heavy charge of black powder to propel a lightweight, often hollow point bullet, at high velocities to maximize point blank range. Later the express cartridges were loaded with nitrocellulose-based gunpowder, leading to the Nitro Express cartridges, the first of which was the .450 Nitro Express. The term ''express'' is still in use today, and is applied to rifles, ammunition, and a type of iron sight. With the widespread adoption of small bore, high velocity rifle cartridges, the meaning of ''express'' has shifted in modern usage, and refers to high velocity, large bore rifles and ammunition, typically used for hunting large or dangerous game at close range. History The name originates with a rifle built by James Purdey in 1856 (based on a pattern established ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifling
In firearms, rifling is machining helical grooves into the internal (bore) surface of a gun's barrel for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting to stabilize the projectile longitudinally by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs. Rifling is characterized by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), "1 turn in 254 mm" ("1:254 mm" or "1:25.4 cm)", or the like. Normally, an experienced shooter can infer the units of measurement from the numbers alone. A shorter distance indicates a faster twist, meaning that for a given velocity the projectile will rotate at a higher spin rate. The combination of length, weight, and shape of a projectile determines the twist rate needed to gyroscopically stabilize it – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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