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2 Bore
Two bore or 2 bore is an obsolete firearm caliber. Specifications Two bore firearms generally fire spherical balls or slugs made of hardened lead, or in the case of a modern metallic cartridge with either solid brass or bronze projectiles. The nominal bore is , and projectiles generally weigh 8 ounces (227 grams; 3500 grains). The velocity is relatively low, at around at the muzzle, but develops approximately muzzle energy. History and background Despite the popularity of the calibre in modern gun lore there is no evidence the 2 bore as named was actually used as a terrestrial and shoulder fired firearm. The equivalent calibre size equates to various punt guns used for harvesting large number of waterfowls usually mounted in 'punts' or flat bottomed boats for commercial purposes. A common misconception is the hunter Sir Samuel White Baker being attributed to its use, however his firearm 'Baby' as described below was actually close to 3 bore, the firearms records still ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliber
In guns, particularly firearms, but not #As a measurement of length, artillery, where a different definition may apply, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel Gauge (firearms), bore – regardless of how or where the bore is measured and whether the finished bore matches that specification. It is measured in inches or in millimetres, millimeters]ref name=barnes2016-p9> In the United States it is expressed in hundredths of an inch; in the United Kingdom in thousandths; and elsewhere in millimeters. For example, a US "45 caliber" firearm has a barrel diameter of roughly 0.45 inches (11.43mm). Barrel diameters can also be expressed using metric dimensions. For example, a "9 mm pistol" has a barrel diameter of about 9 millimeters. Since metric and US customary units do not convert evenly at this scale, metric conversions of caliber measured in decimal inches are typically approximations of the precise spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ounce
The ounce () is any of several different units of mass, weight, or volume and is derived almost unchanged from the , an Ancient Roman unit of measurement. The avoirdupois ounce (exactly ) is avoirdupois pound; this is the United States customary and British imperial ounce. It is primarily used in the United States. Although the avoirdupois ounce is the mass measure used for most purposes, the ' troy ounce' of exactly is used instead for the mass of precious metals such as gold, silver, platinum, palladium, rhodium, etc. The term 'ounce' is also used in other contexts: * The ounce-force is a measure of force (see below). * The fluid ounce is a measure of volume. Historically, a variety of different ounces measuring mass or volume were used in different jurisdictions by different trades and at different times in history. Etymology ''Ounce'' derives from the Ancient Roman (meaning: a twelfth), a unit in the Ancient Roman units of measurement weighing about 27 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram
The gram (originally gramme; SI unit symbol g) is a Physical unit, unit of mass in the International System of Units (SI) equal to one thousandth of a kilogram. Originally defined in 1795 as "the absolute Mass versus weight, weight of a volume of pure water equal to Cube (algebra), the cube of the hundredth part of a metre [1 Cubic centimetre, cm3], and at Melting point of water, the temperature of Melting point, melting ice", the defining temperature (0 °C) was later changed to the temperature of maximum density of water (approximately 4 °C). Subsequent redefinitions agree with this original definition to within 30 Parts-per notation, parts per million (0.003%), with the maximum density of water remaining very close to 1 g/cm3, as shown by modern measurements. By the late 19th century, there was an effort to make the Base unit (measurement), base unit the kilogram and the gram a derived unit. In 1960, the new International System of Units defined a '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grain (mass)
A grain is a unit of measurement of mass, and in the troy weight, avoirdupois, and apothecaries' systems, equal to exactly . It is nominally based upon the mass of a single ideal seed of a cereal. From the Bronze Age into the Renaissance, the average masses of wheat and barley grains were part of the legal definitions of units of mass. Expressions such as "thirty-two grains of wheat, taken from the middle of the ear" appear to have been ritualistic formulas. Another source states that it was defined such that 252.458 units would balance of distilled water at an ambient air-water pressure and temperature of and respectively. Another book states that Captain Henry Kater, of the British Standards Commission, arrived at this value experimentally. The grain was the legal foundation of traditional English weight systems, and is the only unit that is equal throughout the troy, avoirdupois, and apothecaries' systems of mass. The unit was based on the weight of a single grain of barl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir Samuel White Baker
Sir Samuel White Baker (8 June 1821 – 30 December 1893) was an English explorer, officer, naturalist, big game hunter, engineer, writer and abolitionist. He also held the titles of Pasha and Major-General in the Ottoman Empire and Egypt. He served as the Governor-General of the Equatorial Nile Basin (today's South Sudan and Northern Uganda) between April 1869 and August 1873, which he established as the Province of Equatoria. He is mostly remembered as the first European to visit Lake Albert, as an explorer of the Nile and interior of central Africa, and for his exploits as a big game hunter in Asia, Africa, Europe and North America. Baker wrote a considerable number of books and published articles. He was a friend of King Edward VII, who as Prince of Wales, visited Baker with Queen Alexandra in Egypt. Other friendships were with explorers Henry Morton Stanley, Roderick Murchison, John H. Speke and James A. Grant, with the ruler of Egypt Pasha Ismail The Magnificent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Baker
Sir Samuel White Baker (8 June 1821 – 30 December 1893) was an English explorer, officer, naturalist, big game hunter, engineer, writer and abolitionist. He also held the titles of Pasha and Major-General in the Ottoman Empire and Egypt. He served as the Governor-General of the Equatorial Nile Basin (today's South Sudan and Northern Uganda) between April 1869 and August 1873, which he established as the Province of Equatoria. He is mostly remembered as the first European to visit Lake Albert, as an explorer of the Nile and interior of central Africa, and for his exploits as a big game hunter in Asia, Africa, Europe and North America. Baker wrote a considerable number of books and published articles. He was a friend of King Edward VII, who as Prince of Wales, visited Baker with Queen Alexandra in Egypt. Other friendships were with explorers Henry Morton Stanley, Roderick Murchison, John H. Speke and James A. Grant, with the ruler of Egypt Pasha Ismail The Magnif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
45-70
The .45-70 (11.6x53mmR), also known as the .45-70 Government, .45-70 Springfield, and .45-2" Sharps, is a .45 caliber rifle cartridge (firearms), cartridge originally holding 70 grain (unit), grains of black powder that was developed at the United States Army, U.S. Army's Springfield Armory for use in the Springfield Model 1873. It was a replacement for the stop-gap .50-70 Government cartridge, which had been adopted in 1866, one year after the end of the American Civil War, and is known by collectors as the "Trapdoor Springfield". Original ballistics of the 45-70-405 and -500 The original 45-70 loading was designated 45–70–405, referring to a 45 caliber bullet, 70 grains of black powder, and a 405 grain lead round nose bullet. It had a muzzle velocity of . A reduced-power load of of powder (Carbine Load) was manufactured for carbine use with a muzzle velocity of . In 1884, the US Ordnance Department increased the bullet weight of the 45–70 to 45–70–500, or a 45 calib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rifle
A rifle is a long gun, long-barreled firearm designed for accurate shooting and higher stopping power, with a gun barrel, barrel that has a helical or spiralling 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 in warfare, law enforcement, hunting and shooting sports, target shooting sports. The invention of rifling separated such firearms from the earlier smoothbore weapons (e.g., arquebuses, muskets, and other long guns), greatly elevating their accuracy and general effectiveness. The raised areas of a barrel's rifling are called ''lands''; they make contact with and exert torque on the projectile as it moves down the bore, imparting a spin. When the projectile leaves the barrel, this spin persists and lends gyroscopic stability to the projectile due to conservatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rimmed Cartridges
Below is a list of rimmed cartridges (R). Although similar, rimmed cartridges differ from rimfire cartridges (list). A rimmed cartridge is a cartridge with a rim, whose primer is located in the center of the case head; the primer is detonated by the firing pin striking that center location. A rimfire cartridge also has a rim, but the primer is located around the rim; the primer is detonated by striking the rim. Handgun and Carbine * .22 Hornet * .22 Remington Jet * .32 S&W Long * .38 S&W * .38 Special * .357 Magnum * .38-40 Winchester * .41 Short Colt * .41 Long Colt * .41 Special * .41 Magnum * .44 Remington Centerfire * .44 Russian * .44 S&W American * .44 Special * .44 Magnum * .44-40 Winchester * .45 Colt * .45 Auto Rim * .45 Schofield * .454 Casull * .455 Webley * .475 Linebaugh * .500 Linebaugh * .500 S&W Special * .500 S&W Magnum * 7.62×38mmR * 8mm Gasser * 9mm Japanese revolver * 10.4mm Swiss Centerfire * 10.6×25mmR * 11.3×36mmR Shotgun *2 bore * 4 bore * 6 bore * 8 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4 Bore
Four bore or 4 bore is a 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 2 bore and the smaller 6 bore rifles. This caliber was the quintessential elephant gun caliber of the black powder safari rifles. The caliber was also used for the Coffman engine starter, 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 gunmaking, refers to a nominally 4-Gauge (bore diameter), 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 due to the fact that in the days of muzzleloaders, shotgun gauges were custom made and often differed from the actual bore measure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauge (bore Diameter)
The gauge (in American English or more commonly referred to as bore in British English) of a firearm is a unit of measurement used to express the inner diameter (bore diameter) and other necessary parameters to define in general a smoothbore Gun barrel, barrel (compare to caliber, which defines a barrel with rifling and its Cartridge (firearms), cartridge). The gauge of a shotgun is a list that includes all necessary data to define a functional barrel. For example, the dimension of the chamber, the shotgun bore dimension and the valid proof load and commercial ammunition, as defined globally by the Commission internationale permanente pour l'épreuve des armes à feu portatives, C.I.P.; defined in Great Britain by the ''Rules, regulations and scales applicable to the proof of small arms'' (2006) of Worshipful Company of Gunmakers, The London Proof House and Birmingham Proof House, The Birmingham Proof House, as referred in the Gun Barrel Proof Act 1978, Paragraph 6; and defined in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holland & Holland
Holland & Holland Limited is a British gunmaker and luxury clothing retailer based in London, England, which sells handmade sporting rifles and shotguns. The company holds two Royal Warrant of Appointment (United Kingdom), royal warrants. History Holland & Holland was founded by Harris Holland (1806–1896) in 1835. Harris Holland was born in 1806 in London. Although accounts of his background are somewhat sketchy, it is believed that his father was an organ builder, while Harris had a tobacco wholesale business in London. He was successful, and was often seen at various pigeon shooting, pigeon shoots at important London Club (organization), clubs, as well as leasing a grouse moorland, moor in Yorkshire. Having no children of his own, he took on his nephew Henry Holland as an apprentice in 1861. In 1867 Henry became a partner and in 1876 the name changed to Holland & Holland. Although Henry was a full partner, Harris kept strict control and was the only one who could sign a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
