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.300 Lapua Magnum
The .300 Lapua Magnum (7.62×70mm) is a specialized rimless bottlenecked centerfire cartridge developed for long-range rifles. The commercially successful .338 Lapua Magnum cartridge has functioned as the parent case for the .300 Lapua Magnum, which is essentially a necked-down version of the .338 Lapua Magnum. The .338 cartridge case was used for this since it has the capability to operate with high chamber pressures which, combined with smaller and hence lighter bullets result in very high muzzle velocities. History The Finnish ammunition manufacturer Lapua got the .300 Lapua Magnum C.I.P. ( Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) certified, so it became an officially registered and sanctioned member of the Finnish 70 mm "family" of super magnum rifle cartridges. The .300 Lapua Magnum is not commercially available anymore today and currently (2007) exists only as a C.I.P. datasheet. It is however still used by a few shooters who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapua
Lapua (; sv, Lappo) is a town and municipality of Finland. It is located next to the Lapua River in the region of South Ostrobothnia. The town has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Finnish. History In the early 14th century, permanent settlement began to spread to the Lapuanjoki Valley. Residents came from, among other areas, the settlement center of Suur-Sastamala in Upper Satakunta, which had good land and water connections to the north. The focus of Ostrobothnia's settlement was initially on the lower reaches of the Kyrönjoki River. The proximity to the sea of the Kvarken area, which is rich in natural resources, was especially attractive. Lapua at that time had some Lapps who considered the region their wilderness area. The name Lapuan was probably given by the coastal Swedes precisely because of the Lapps who lived in the area. The Battle of Lapua was fought between Swedish and Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twist Rate
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 – barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QuickLOAD
QuickLOAD is an internal ballistics predictor computer program for firearms. For computations apart from other parameters, * the cartridge * the projectile (bullet) * the gun barrel length * the cartridge overall length * the propellant type and quantity must be entered for calculating an estimated maximum chamber gas piezo pressure, muzzle velocity, muzzle pressure and other relevant data. QuickLOAD database QuickLOAD has a default database of predefined bullets, cartridges and propellants. The database of the more recent versions of QuickLOAD also include dimensional technical drawings of the predefined cartridges and for most cartridges photographic images. Data can later be imported or entered by the user to expand the programs database. The default database contains more than 2,500 projectiles, over 1,200 cartridges, over 225 powders and dimensional drawings and photos of many cartridges. The default database however contains some errors, so measuring sizes, weights and case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7 Mm Caliber
This is a list of firearm cartridges which have bullets in the caliber In guns, particularly firearms, 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 f ... range. *''Length'' refers to the cartridge case length. *'' OAL'' refers to the overall length of the cartridge. All measurements are in mm (in). Pistol cartridges Revolver cartridges Rifle cartridges 6.8 mm (.277 in) rifle cartridges (commonly known as .270 or 6.8 mm) 7.0 mm (.284 in) rifle cartridges (commonly known as 7mm) 7.8 mm (.308 in) rifle cartridges (commonly known as .308, 30 caliber, 7.62 mm) 7.87 mm (.310 in) and greater rifle cartridges References *Barnes, Frank C., ed. Amber, John T., ''Cartridges Of The World'' (3rd Edition), (DBI, 1978), * External links 7mm Cartridge Guidefrom AccurateShooter.com ''Rifle Shooter Mag' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rifle Cartridges
List of rifle cartridges, by primer type, calibre and name. File:Cartridge Sample 2.jpg, 350px, From left to right: 1 .17 HM2,2 .17 HMR, 2.5 .17 wsm, 3 .22LR, 4 .22 WMR, 5 .17/23 SMc, 6 5mm/35 SMc, 7 .22 Hornet, 8 .223 Remington, 9 .223 WSSM, 10 .243 Winchester, 11 .243 Winchester Improved (Ackley), 12 .25-06 Remington, 13 .270 Winchester, 14 .308, 15 .30-06, 16 .45-70, 17 .50-90 Sharps rect 54 345 101 556 .17 HM2 rect 110 296 153 556 .17 HMR rect 159 341 207 556 .22LR rect 211 294 265 556 .22 WMR rect 271 221 341 556 .17/23 SMc rect 345 186 432 556 5 mm/35 SMc rect 441 225 513 556 .22 Hornet rect 521 151 602 556 .223 Remington rect 610 134 724 556 .223 WSSM rect 732 95 832 556 .243 Winchester rect 838 85 929 556 .243 Winchester Improved (Ackley) rect 937 23 1030 556 .25-06 Remington rect 1039 25 1123 556 .270 Winchester rect 1132 93 1218 556 .308 rect 1227 17 1316 556 .30-06 rect 1326 106 1440 556 .45-70 rect 1456 31 1585 556 .50-90 Sharps desc none Rimfire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
300 Remington Ultra Magnum
3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious or cultural significance in many societies. Evolution of the Arabic digit The use of three lines to denote the number 3 occurred in many writing systems, including some (like Roman and Chinese numerals) that are still in use. That was also the original representation of 3 in the Brahmic (Indian) numerical notation, its earliest forms aligned vertically. However, during the Gupta Empire the sign was modified by the addition of a curve on each line. The Nāgarī script rotated the lines clockwise, so they appeared horizontally, and ended each line with a short downward stroke on the right. In cursive script, the three strokes were eventually connected to form a glyph resembling a with an additional stroke at the bottom: ३. The Indian digits spread to the Caliphate in the 9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30-378 Weatherby Magnum
3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious or cultural significance in many societies. Evolution of the Arabic digit The use of three lines to denote the number 3 occurred in many writing systems, including some (like Roman and Chinese numerals) that are still in use. That was also the original representation of 3 in the Brahmic (Indian) numerical notation, its earliest forms aligned vertically. However, during the Gupta Empire the sign was modified by the addition of a curve on each line. The Nāgarī script rotated the lines clockwise, so they appeared horizontally, and ended each line with a short downward stroke on the right. In cursive script, the three strokes were eventually connected to form a glyph resembling a with an additional stroke at the bottom: ३. The Indian digits spread to the Caliphate in the 9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sniper
A sniper is a military/paramilitary marksman who engages targets from positions of concealment or at distances exceeding the target's detection capabilities. Snipers generally have specialized training and are equipped with high-precision rifles and high-magnification optics, and often also serve as scouts/observers feeding tactical information back to their units or command headquarters. In addition to long-range and high-grade marksmanship, military snipers are trained in a variety of special operation techniques: detection, stalking, target range estimation methods, camouflage, tracking, bushcraft, field craft, infiltration, special reconnaissance and observation, surveillance and target acquisition. Etymology The name "sniper" comes from the verb "to snipe", which originated in the 1770s among soldiers in British India in reference to shooting snipes, a wader that was considered an extremely challenging game bird for hunters due to its alertness, camouflaging color ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overbore
Overbore cartridges are those with a relatively large case volume or case capacity, coupled with a relatively small diameter bullet. The case volume or case capacity and barrel bore area can be mathematically related to obtain a case volume to bore area ratio in metric or imperial units. = \frac where: * Volume_ = the cartridge case internal volume or case capacity (in ml or (for non-metric users) grains of water) * Area_ = barrel bore cross section area (in cm2 or in2) The higher the Oratio result, the more overbore a cartridge will be. As the ratio is expressed in units of length, relatively high Oratio is a good predictor of suitability for relatively long barreled guns. Oratio is also used to predict barrel life in cartridges of the same caliber, but not of different calibres, since the ratio is an extensive quantity that does not correlate to temperature or pressure (e.g. a .50 cal straight cartridge may have the same overbore as a highly necked down .17 cal cartridge). Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TRG-42
The Sako TRG is a bolt-action sniper rifle line designed and manufactured by Finnish firearms manufacturer SAKO of Riihimäki. The TRG-21 and TRG-22 are designed to fire standard .308 Winchester ( 7.62×51mm NATO) sized cartridges, while the TRG-41 and TRG-42 are designed to fire more powerful and dimensionally larger .300 Winchester Magnum (7.62×67mm) and .338 Lapua Magnum (8.6×70mm) cartridges. They are available with olive drab green, desert tan/coyote brown, dark earth or black stocks, and are also available with a folding stock. The sniper rifles are normally fitted with muzzle brakes to reduce recoil, jump and flash. The Sako factory TRG muzzle brakes vent sideways and are detachable. Generally TRGs are outfitted with a Zeiss or Schmidt & Bender PM II telescopic sight with fixed power of magnification or with variable magnification. Variable telescopic sights can be used if the operator wants more flexibility to shoot at varying ranges, or when a wide field of view is r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAKO
Sako or SAKO may refer to: People with the surname * Bakary Sako (born 1988), French-born Malian footballer * Hygerta Sako, Albanian beauty pageant contestant * Louis Raphaël I Sako (born 1948), Iraqi cleric, head of the Chaldean Catholic Church * Masato Sako (1946–2003), Japanese actor * Morike Sako (born 1981), French footballer * Kenichi Sako (born 1970), Japanese basketball player * Sevkaretsi Sako (1870–1908), Armenian revolutionary * Tomohisa Sako (born 1991), a Japanese singer * Yago Alonso-Fueyo Sako (born 1979), Côte d'Ivoire-born Equatoguinean footballer * Yugo Sako (c.1928–2012), Japanese film maker Other uses * SAKO (programming language), a Polish 1950s programming language * Sako Station, a railway station in Japan * SAKO, a Finnish firearm manufacturer * A diminutive form of the Armenian male name Sargis Sargis or Sarkis ( hy, Սարգիս, ; , ) is a male given name in both Armenian and Assyrian communities. It is the reduced form of the Armenian surname S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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