1.
.308 Winchester
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The.308 Winchester is a rimless, bottlenecked rifle cartridge and is the commercial cartridge from which the 7. 62×51mm NATO round was derived. The.308 Winchester was introduced in 1952, two prior to the NATO adoption of the 7. 62×51mm NATO T65. Winchester branded the cartridge and introduced it to the hunting market as the.308 Winchester. Winchesters Model 70 and Model 88 rifles were chambered for the new cartridge. Since then, the.308 Winchester has become the most popular short-action and it is also commonly used for civilian hunting, target shooting, Metallic Silhouette, bench rest target shooting, palma, metal matches and military sniping, and police sharpshooting. The relatively short case makes the.308 Winchester especially well-adapted for short-action rifles, when loaded with a bullet that expands, tumbles, or fragments in tissue, this cartridge is capable of high terminal performance. Their interchange is, however, considered safe by the Sporting Arms, the.308 Winchester has 3.64 ml cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt action rifles and machine guns alike, all dimensions in millimeters and inches. Americans would define the angle at alpha/2 =20 degrees. The common rifling twist rate for this cartridge is 305 mm,4 grooves, Ø lands =7.62 mm, Ø grooves =7.82 mm, land width =4.47 mm and the primer type is large rifle. Rulings the.308 Winchester can handle up to 415.00 MPa Pmax piezo pressure, regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C. I. P. pressure to certify for sale to consumers. This means that.308 Winchester chambered arms in C. I. P, regulated countries are currently proof tested at 519.00 MPa PE piezo pressure. North American SAAMI maximum pressure for the 308 Winchester is 62,000 PSI, the.308 Winchester is one of the most popular hunting cartridges in the United States, and possibly the world. It has gained popularity in countries as an exceptional cartridge for game in the medium- to large-sized class. In North America it is used extensively on whitetail deer, pronghorn, clay Harvey, an American gun writer, says it is usable on moose and elk. Layne Simpson, an American who has hunted in Sweden, says he is surprised how many hunters there use the cartridge, craig Boddington was told by a Norma Precision executive that the.308 is one of Normas best-selling calibers. In Africa the.308 Win is one of the most popular calibers among Bushveld hunters and is used on anything from duiker right up to the massive eland. The.308 Winchester has slightly more drop at range than the. 30-06 Springfield
2.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
3.
Remington Arms
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Remington Arms Company, LLC is an American manufacturer of firearms and ammunition in the United States. It was founded in 1816 by Eliphalet Remington in Ilion, New York, as E. Remington, Remington is Americas oldest gun maker and Its Americas oldest factory that still makes its original product-guns. It is the only U. S. company which produces both firearms and ammunition domestically and is the largest U. S. producer of shotguns, Remington has also developed or adopted more cartridges than any other gun maker or ammunition manufacturer in the world. Additionally its products are distributed in over 60 foreign countries, making its distribution base, Remington Arms is part of the Freedom Group, which is owned by Cerberus Capital Management. Remington built a new plant in Huntsville, Alabama which is now building Modern Sporting Rifles, the Remington company was founded in 1816. Eliphalet Remington II believed he could build a gun than he could buy. Farming communities in the region were famous for their skills and self-sufficiency. Remingtons father was a blacksmith, and wanted to expand his business into rifle barrel production, local residents often built their own rifles to save on costs, but purchased the barrel. Remingtons father sent him to a barrel maker in a major city to purchase a barrel. At the time, the method was to heat and wrap long flat bars of iron around a rod of the caliber desired. By heating and hammering the coiled bars around the central rod, after the young man returned home, his family added a successful barrel making operation to his fathers forge, in Ilion Gorge, New York. Remington began designing and building a rifle for himself. At age 23, he entered a match, though he only finished second. Before Remington left the field day, he had received so many orders from other competitors that he was now officially in the gunsmithing business. By 1828, the moved to nearby Ilion, New York. On March 7,1888, ownership of E. Remington & Sons left possession of the Remington family and was sold to new owners, Marcellus Hartley, at this time the name was formally changed to the Remington Arms Company. The Bridgeport site became the home of Remingtons ammunition plant, in 1912, Remington and Union Metallic Cartridge Company were combined into a single entity, called Remington UMC. In 1915, the plant at Ilion was expanded, and with this expansion became basically the same plant as today, during World War I, Remington produced arms under contract for several Allied powers
4.
10mm Auto
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The 10mm Auto is a semi-automatic pistol cartridge first developed by Jeff Cooper and introduced in 1983 with the Bren Ten pistol. Its design was improved, then produced initially by ammunition manufacturer FFV Norma AB of Åmotfors. The 10mm Auto cartridge was originally drafted and championed by eminent firearms expert Lieutenant Colonel John Dean Jeff Cooper and it was designed to be a medium-velocity pistol cartridge with better external ballistics than the.45 ACP and capable of greater stopping power than the 9×19mm Parabellum. When FFV Norma AB designed the cartridge at the behest of Dornaus & Dixon Enterprises, Inc. for their Bren Ten pistol, the company decided to increase the power over Coopers original concept. The case was derived from the.30 Remington rifle round, cut down, an example being the peculiar circumstances surrounding the pistols distribution at its primary release, leading to a number of initial Bren Tens sent to dealers and customers without magazines. In the succeeding five years, prices on the Standard Model rose to in excess of U. S. $1,400, since 1994, both units still field the weapon and caliber to this day. Thereafter, experimentations were carried out and a specification for reduced-recoil ammunition was created, the requirement was later submitted to the Federal Cartridge Corporation for production and followed further review. This became known as the 10mm Lite, or 10mm FBI load and this altered cartridge was named the.40 Smith & Wesson. In 2015 SIG Sauer entered the 10mm marketplace with their P220 model chambered in 10mm, the 10mm outperforms the.40 S&W by 270–300 ft/s for similar bullet weights when using available full power loads, as opposed to the 10mm FBI level loads still found in some ammunition catalogs. The 10mm Auto has 1.56 milliliter cartridge case capacity. Common rifling twist rate for this cartridge is 406.40 mm,6 grooves, Ø lands =9.91 mm, Ø grooves =10.17 mm, a large pistol primer is used. The Commission Internationale Permanente pour lEpreuve des Armes à Feu Portatives rulings indicate a maximum pressure of 230 MPa, regulated countries, every pistol/cartridge combination is required to be proofed at 130% of this maximum C. I. P. pressure to certify for sale to consumers. The Sporting Arms and Ammunition Manufacturers Institute maximum pressure limit for the 10mm Auto is set at 37,500 psi, at full potential, the 10mm Auto produces energy slightly higher than an average.357 Magnum load and below standard.41 Magnum rounds. The cartridge is considered to be high-velocity, giving it a flight path upon firing relative to other handgun cartridges. In its lighter loadings, the 10mm Auto is a duplicate of the.40 S&W cartridge. More powerful loadings can equal or exceed the performance of the.357 Magnum, and retain more kinetic energy at 100 yards than the.45 ACP has at the muzzle. The 10mm Auto is marketed for hunting, defensive, and tactical use and is one of the few semi-automatic, the round makes the Major power factor ranking in the International Practical Shooting Confederation, even in lighter loadings. In military use, the government of Denmark has issued the Glock 20 to the Slædepatruljen Sirius headquartered in Daneborg, the pistols were issued as a defense against polar bears which the unit encounters during patrols
5.
Lever action
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Lever action is a type of firearm action which uses a lever located around the trigger guard area to load fresh cartridges into the chamber of the barrel when the lever is worked. This contrasts to bolt-action, semi-automatic, or selective-fire weapons, most lever-action firearms are rifles, but some lever-action shotguns and a few pistols have also been made. One of the most famous lever-action firearms is the Winchester Model 1873 rifle, even Colts Mfg. Co. produced 1883 until 18856403 lever-action Colt-Burgess rifles. Mossberg produces the 464 in centerfire. 30-30 and rimfire.22, probably the first lever-action rifles on the market were Colts 1st and 2nd Model Ring Lever rifles, both Cap and ball rifles, produced by the Patent Arms Mfg. Co. Paterson, N. J. -Colts Patent between 1837 and 1841, the ring-lever was located in front of the trigger. This loading-lever, when pulled, would index the cylinder to the next position, the first significant lever-action design was the Spencer repeating rifle, a magazine-fed lever-operated breech-loading rifle designed by Christopher Spencer in 1860. It was fed from a removable seven-round tube magazine, enabling the rounds to be fired one after another, and which, the Henry also placed the magazine under the barrel, rather than in the butt-stock, a trend followed by most tubular magazines since. The Martini–Henry rifle was the rifle of British and Empire forces from the early 1870s to the turn of the 20th century. It was used in areas, either by civilians or by the local military. Variants copying the Martini–Henry mechanism but using more modern cartridges were also produced, john Marlin, founder of Marlin Firearms Company, New Haven, Connecticut, introduced Marlins first lever-action repeating rifle as the Model 1881. This was chambered in rounds such as the 45/70 and 38/55 and its successor was the 1895 solid top design, which we know as the model 336 today. It also gave rise to the Marlin Model 1894, which is still in production today, by the 1890s, lever-actions had evolved into a form that would last for over a century. Both Marlin and Winchester released new model lever-action rifles in 1894, the Marlin rifle is still in production, whereas production of the Winchester 94 ceased in 2006. While externally similar, the Marlin and Winchester rifles are quite different internally, the fledgling Savage Arms Company became well known after the development of its popular hammerless Models 1895 and 1899 lever-action sporting rifles. Unlike most Winchester and the Marlin lever-action rifles, which used a tubular magazine requiring round-nose or flat-nose bullets and this allowed the 99 to use cartridges with spitzer pointed bullets for increased ballistic performance. The 99 was produced in different cartridges and several different model variations. The final models eliminated the very expensive-to-produce rotary magazine, using a box magazine instead. But the 99 was still expensive to produce when compared to the other lever-action rifles
6.
M1903 Springfield
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It was officially adopted as a United States military bolt-action rifle on June 19,1903, and saw service in World War I. It was officially replaced as the infantry rifle by the faster-firing semi-automatic eight-round M1 Garand starting in 1937. However, the M1903 Springfield remained in service as a standard infantry rifle during World War II. It also remained in service as a rifle during World War II, the Korean War. It remains popular as a firearm, historical collectors piece. Troops armed with outclassed Springfield Model 1892–99 Krag–Jørgensen bolt-action rifles and older single-shot Springfield rifles, the Spanish soldiers inflicted 1,400 U. S. casualties in a matter of minutes. A U. S. Army board of investigation was commissioned as a result of this battle. They recommended replacement of the Krag, the M1903 not only replaced the various versions of the U. S. The two main problems cited with the Krag were its slow-to-load magazine and its inability to handle higher chamber pressures for high-velocity rounds. The United States Army attempted to introduce a higher-velocity cartridge in 1899 for the existing Krags, though a stripper-clip or charger loading modification to the Krag was designed, it was clear to Army authorities that a new rifle was required. In 1882, the bolt action.45 Remington Lee rifle design of 1879, several hundred 1882 Lee Navy Models were also subjected to trials by the U. S. Army during the 1880s, though the rifle was not formally adopted. The Navy adopted the Model 1885, and later different style Lee Model 1895, in Army service, both the 1885 and 1895 6mm Lee were used in the Spanish–American War, along with the.30 Krag and the. 45-70 Model 1873 Springfield. The Lee rifles detachable box magazine was invented by James Paris Lee, other advancements had made it clear that the Army needed a replacement. In 1892, the U. S. military held a series of rifle trials, the Krag officially entered U. S. service in 1894, only to be replaced nine years later by the Springfield M1903. A prototype rifle was produced in 1900, interestingly, it was similar to Rifle No.5. This design was rejected, and a new design combining features of the 1898 Krag rifle, Springfield began work on creating a rifle that could handle higher loads around the turn of the 20th century. Taking a cue from the 1898 Mauser Gewehr 98, a safety lug was added to the side of the bolt behind the extractor. The bolt handle was also bent downwards, to make operation of the bolt faster, the Springfield Model 1901 almost entered production
7.
Pattern 1914 Enfield
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The Rifle.303 Pattern 1914 was a British service rifle of the First World War period. A bolt action weapon with an integral 5-round magazine, it was principally contract manufactured by companies in the United States and it served as a sniper rifle and as second line and reserve issue until being declared obsolete in 1947. The Pattern 1914 Enfield was the successor to the Pattern 1913 Enfield experimental rifle, during the Boer War the British were faced with accurate long-range fire from Mauser rifles, model 1893 and 1895, in 7×57mm caliber. This smaller, high-velocity round prompted the War Department to develop their own magnum round, the primary contractor was unable to produce more than a handful of rifles, so the P14 became a de facto afterthought. The Short Magazine Lee–Enfield therefore remained the standard British rifle during World War I, shortly afterwards a modification was made to enlarge the bolt lugs and the rifle became the Mark I*. Eventually Winchester would manufacture 235,293 rifles, Remington 400,000 and Eddystone 600,000, when the U. S. entered World War I, the P14 was modified and standardized by the U. S. Ordnance Department and went into production at the factories as had produced the P14, production of that rifle having ceased. Sometimes called the M1917 Enfield, it was chambered for the standard US, in 1926 the Pattern 1914 Enfield was re-designated by the British military as the No3Mk1. Prior to and during World War II, the Pattern 1914 Enfield was used, post Dunkirk and with the great loss of arms that the British forces endured in 1940 the No3Mk1 stock suddenly became a valued resource. The rifle was used again as a sniper rifle, the configuration being different from the World War I incarnation. The Australian Army also used some quantities of the variant of the P14 during World War II. Once sufficient numbers were built up of the Short Magazine Lee–Enfields, the P14/No3Mk1 was declared obsolete in British service in 1947. Adapting the design to fire the standard.303 British round led to the Rifle.303 Pattern 1914, with its prominent sight protection ears on the receiver, dog-leg bolt handle and pot-belly magazine, it was distinctive in appearance. The P14 was a design for the time, and was said to be the most advanced service rifle of World War I. The Pattern 1914 Enfield had a large, strong action. The bolt action had a Model 98 Mauser type claw extractor, the unusual dog-leg bolt handle is low profile and places the knob close to the firers hand, again facilitating rapid fire. Like the Lee–Enfield, the safety falls under the firers thumb, the rifle was designed with a iron sight line consisting of rear receiver aperture battle sight calibrated for. The ladder aperture sight moves vertically on a slide, and hence was not able to correct for wind drift, the front sighting element consisted of a wing guards protected front post, and was adjusted laterally and locked into position during assembly at the arsenal
8.
Remington Model 700
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The Remington Model 700 is a series of bolt-action rifles manufactured by Remington Arms since 1962. All are based on the same centerfire bolt action and they often come with a 3-, 4- or 5-round internal magazine depending on caliber, some of which have a floor-plate for quick-unloading, and some of which are blind. The rifle can also be ordered with a box magazine. The Model 700 is available in many different stock, barrel and it is a development of the Remington 721 and 722 series of rifles, which were introduced in 1948. The Remington 700 action is designed for mass production and it is a manually operated bolt action with two forward dual-opposed lugs. The bolt face is recessed, fully enclosing the base of the cartridge, the ejector is a plunger on the bolt face actuated by a coil spring. The bolt is of 3-piece construction, brazed together, the receiver is milled from round cross-section steel. The Remington 700 comes in a number of variants, with different stocks, barrel configurations, metal finishes. In addition, there are three lengths of action, the symmetrical two-lug bolt body has a.695 in diameter. The differing action dimensions influence lock time, the long action has a lock time of 3.0 milliseconds and the short action has a 15% faster lock time of 2.6 milliseconds. To these can be added various magazine configurations, a magazine which has no floorplate, a conventional magazine with detachable floorplate. There are standard consumer versions as well as designed for military. Some variants come with bipods, slings and other accessories, there are several variants of the consumer version of the Model 700, including, Model 700 Model 700 SPS Model 700 ADL Model 700 BDL Model 700 CDL Model 700 VTR Model 700 Safari. Heavy barrel versions with laminated stocks like the Model 700 SPS varmint are available for varmint hunting, the Model 700 ADL was replaced as the most economical Model 700 by the Model 700 SPS in newer production. The 700CDL is usually higher priced than the 700BDL, but has a barrel in comparison. The Mil-Spec refers solely to the 5-R rifling profile designed by Boots Obermeyer and used in the single broach-cut barrels he produces for use in the M24, M40, the contour of the hammer-forged production Remington barrel is much thinner than that used in the M24 and M40 rifle systems. Remington produced a 700 ML muzzleloading rifle from 1996 onward, the EtronX electronic primer ignition system was implemented in the Model 700 EtronX introduced in 2000. There are two models of the 700P – the standard 700P with a 26 heavy barrel and the 700P Light Tactical Rifle which has a 20 fluted heavy barrel
9.
Bullet
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The word bullet is a firearm term. A bullet is a projectile expelled from the barrel of a firearm, the term is from Middle French and originated as the diminutive of the word boulle which means small ball. Bullets are made of a variety of materials and they are available singly as they would be used in muzzle loading and cap and ball firearms, as part of a paper cartridge, and much more commonly as a component of metallic cartridges. Bullets are made in a numbers of styles and constructions depending on how they will be used. Many bullets have specialized functions, such as hunting, target shooting, training, defense, a bullet is not a cartridge. In paper and metallic cartridges a bullet is one component of the cartridge, bullet sizes are expressed by their weight and diameter in both English and Metric measurement systems. For example.22 caliber 55 grain bullets or 5. 56mm 55 grain bullets are the same caliber, the word bullet is often used colloquially to refer to a cartridge, which is a combination of the bullet, paper or metallic case/shell, powder, and primer. This use of bullet, when cartridge is intended, leads to confusion when the components of a cartridge are discussed or intended, the bullets used in many cartridges are fired at a muzzle velocity faster than the speed of sound. Meaning they are supersonic and thus can travel a substantial distance, bullet speed through air depends on a number of factors such as barometric pressure, humidity, air temperature, and wind speed. Subsonic cartridges fire bullets slower than the speed of sound and so there is no sonic crack and this means that a subsonic cartridge such as.45 ACP can be effectively suppressed to be substantially quieter than a supersonic cartridge such as the.223 Remington. Bullets do not normally contain explosives, but damage the target by impact. The first use of gunpowder in Europe was recorded in 1247 and it had been used in China for hundreds of years. Later in 1364 hand cannon appeared, early projectiles were made of stone. Stone was used in cannon and hand cannon, in cannon it was eventually found that stone would not penetrate stone fortifications which gave rise to the use of heavier metals for the round projectiles. Hand cannon projectiles developed in a similar following the failure of stone from siege cannon. The first recorded instance of a ball from a hand cannon penetrating armor occurred in 1425. In this photograph of shot retrieved from the wreck of the Mary Rose which was sunk in 1545, the round shot are clearly of different sizes and some are stone while others are cast iron. The development of the hand culverin and matchlock arquebus brought about the use of cast lead balls as projectiles, bullet is derived from the French word boulette, which roughly means little ball
10.
M1917 Enfield
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Numerically, it was the main rifle used by the American Expeditionary Forces in Europe during World War I. The Danish Slædepatruljen Sirius still use the M1917 as their service weapon, before World War I, the British had the Short Magazine Lee–Enfield as their main rifle. Compared to the German Mausers or U. S.1903 Springfield, the starting point was to copy many of the features of the Mauser system. The rifle was developed at the Royal Small Arms Factory at Enfield in the United Kingdom. This development, named the Pattern 1913 Enfield or P13, included a front locking, dual lug bolt action with Mauser type claw extractor as well as a new, powerful rimless.276 Enfield cartridge. The design carried over a Lee–Enfield type safety at the rear of the action, an advanced design of aperture rearsight and a long sight radius were incorporated to maximize accuracy potential. Ease of manufacture was also an important criterion, however, the onset of World War I came too quickly for the UK to put it into production before the new cartridge could be perfected, as it suffered from overheating in rapid fire and bore fouling. As it entered World War I, the UK had an urgent need for rifles and they decided to ask these companies to produce the new rifle design in the old.303 British chambering for convenience of ammunition logistics. The new rifle was termed the Pattern 14, in the case of the P14 rifle, Winchester and Remington were selected. A third manufacturer, Eddystone Arsenal – a subsidiary of Remington – was tooled up at the Baldwin Locomotive Works in Eddystone, thus, three variations of the P14 and M1917 exist, labeled Winchester, Remington and Eddystone. When the U. S. entered the war, it had a similar need for rifles, the Enfield design was well-suited to the. 30-06 Springfield, it was a big, strong action and was originally intended to employ a long, powerful, rimless bottlenecked cartridge. Eddystone made 1,181,908 rifles – more than the production of Remington, the standardized production effort regarding parts interchangeability did not work out as intended. Winchester produced slightly differing parts, leading to interchangeability issues with the Remington, the markings were changed to reflect the model and caliber change. A16. 5-inch blade bayonet, the M1917 bayonet was produced for use on the rifle and it would later be used on several other small arms like the M97 and M12 trench shotguns and early M1 Garands. The new rifle was used alongside the M1903 Springfield and quickly surpassed the Springfield design in numbers produced, by November 11,1918 about 75% of the AEF in France were armed with M1917s. An M1917 Enfield rifle may have used by Sergeant Alvin C. York on October 8,1918, during the event that would see him awarded the Medal of Honor, according to his diary, Sergeant York also used a Colt M1911 semi-automatic pistol on that day. After the armistice, the M1917 rifles were placed in storage for the most part, during the 1920s and 1930s a large number of M1917 rifles were released for civilian use through the NRA or were sold as surplus
11.
M24 Sniper Weapon System
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The M24 is referred to as a weapon system because it consists of not only a rifle, but also a detachable telescopic sight and other accessories. The M24 SWS has the long action bolt version of the Remington 700 receiver but is chambered for the 7. 62×51mm NATO short action cartridge that has a length of 2.750 inches. The long action allows the rifle to be re-configured for dimensionally larger cartridges up to 3.340 inches in overall length, the M24 originally came tapped for the Leupold Ultra M3A 10×42mm fixed-power scope, which came with a circle-shaped mil-dot glass-etched reticle. This was later replaced in 1998 by the cheaper Leupold Mk 4 LR/T M1 10×40mm fixed-power scope with an elongated-shaped mil-dot wire reticle, the first number is the scopes magnification and the second number in millimeters is the diameter of the objective lens. A fixed power scope has only one magnification and a variable power scope can be adjusted to focus between a range of magnifications, the rifle itself comes with a detachable Harris 9–13 1A2-LM or Harris 9–13 1A2-L bipod unit. The M24 SWS was to be replaced with the M110 Semi-Automatic Sniper System, however, the Army still continued to acquire M24s from Remington until February 2010 and upgraded to the A2 and M24E1 standard in many cases, continuing to serve. The Army chose to upgrade its entire M24 rifle fleet to the M2010 Enhanced Sniper Rifle, Sights, Leupold Ultra M3A 10×42mm fixed power, or Leupold Mk 4 LR/T M3 10×40mm fixed power scope. In 2001 when Remington had the contract to the U. S. military. Redfield was out of business by then, necessitating a change, barrel, Made of 416R stainless steel. The bore twist is 1-turn-in-11.25 inches and the rifling is five radial lands, because of the odd number of lands, none of the lands are 180° apart, i. e. in direct opposition. This results in less bullet deformation, which produces more consistent point of impact, in 5-R rifling, the side of the land is cut at a 65° angle, rather than 90° in conventional rifling. Stock, H-S Precision PST-024, the model with the fixed cheek piece, adjustable LOP, the stock secures the action via an aluminum bedding block to keep it rigid. A twin-strut extension that pulls out of the butt allows a 2-inch adjustment to length-of-pull and this is effected by a thick wheel on a central grooved pillar for adjusting the length and a thin locking ring behind it locks the thick wheel in place. The stock is made from a polymer foam reinforced with fiberglass, carbon fiber. They were rigorously tested before being approved by Remington and the military, accuracy, According to MIL-R-71126, the M24 shall achieve the accuracy results stated below when using M118 Special Ball and fired from a Government approved machine rest. The actual rifle requirements for accuracy were.35 MOA from a machine rest and he stated, Interesting side note was there was a 10,000 round requirement for the barrel to maintain the original accuracy. In fact after some 10,000 round tests we discovered the accuracy improved, a few barrels were tested past 20,000 and accuracy never went below the original accuracy requirement. Maximum effective range is given as 800 meters, but record shots have been made with the M24 at over 1,000 meters, meanwhile, the standard optical sight has a maximum elevation adjustment of 1,000 meters
12.
M2010 Enhanced Sniper Rifle
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The M2010 Enhanced Sniper Rifle, formerly known as the XM2010 and M24 Reconfigured Sniper Weapon System, is a sniper rifle developed by PEO Soldier for the United States Army. It is derived from the M24 Sniper Weapon System and replaced the existing M24s, after winning a competitive bidding process, Remington was awarded the production contract for up to 3,600 weapons. The Army had anticipated fielding upgraded weapons to deployed U. S. Army Snipers near the end of December 2010, but later expected fielding would happen in January 2011. The U. S. Army developed the system so that the effective range would help snipers in engagements in mountainous. The general penalties for using bigger, more powerful magnum rifle ammunition compared to smaller, standard rifle cartridges are increases in recoil, jump, flash, weight, and barrel wear. The M2010 Enhanced Sniper Rifle differs from 7. 62×51mm NATO chambered M24 Sniper Weapon System in that M2010 sniper weapons are, barreled to a 24 in long,1 in 10 inch twist rate hammer-forged free floating barrel. Fitted with a new assembly that maximizes the amount of physical adjustments for the sniper to provide a better user customized fit. Fitted with a detachable box magazine. The 10 in Titan-QD Fast-Attach suppressor eliminates 98 percent of muzzle flash,60 percent of recoil, fitted with a Leupold Mark 46. The application of advanced corrosion resistant coatings throughout the system, according to Remington Arms each rifle is tested to meet the requirement to fire ≤1 MOA/0.28 mrad before being released for fielding. In 2009 the U. S. government purchased MK248 MOD1.300 Winchester Magnum match-grade ammunition for use in.300 Winchester Magnum sniper rifles like the U. S. Navy Mk13 SWS or reconfigured M24 SWSs. According to the U. S. Navy this ammunition should increase the effective range of. In January 2014, the U. S. Department of Defense annual testing report found that the older A191 or MK248 Mod 0. Live fire tests were conducted in March 2013 against ballistics gelatin, light material barriers and this was the first time the Pentagon’s Director, Operational Test and Evaluation tested the round, which can hit targets out to 1,200 m. The U. S. Army issued three XM2010s to snipers at the United States Army Sniper School on 18 January 2011 and began using the rifle in combat in Afghanistan in March 2011. The XM2010s.300 Win Mag round extends the engagement range over the M24 from 800 meters to 1,200 meters, enhancing lethality and standoff. The Barrett M107.50 caliber rifle can hit targets past 2,000 meters and this was acceptable for material targets, but not individual personnel. The XM2010 addressed the problem and gave increased range over the M24, Remington had been awarded a $28 million on 20 September 2010 to rebuild 3,600 M24 rifles, but only 250 had been ordered to be changed by the time the first XM2010s were fielded
