|
.30-06
The .30-06 Springfield cartridge (pronounced "thirty- aught-six" ), 7.62×63mm in metric notation, and called the .30 Gov't '06 by Winchester, was introduced to the United States Army in 1906 and later standardized; it remained in military use until the late 1970s. The ".30" refers to the caliber of the bullet in inches. The "06" refers to the year the cartridge was adopted, 1906. It replaced the .30-03, 6mm Lee Navy, and .30-40 Krag cartridges. The .30-06 remained the U.S. Army's primary rifle and machine gun cartridge for nearly 50 years before being replaced by the 7.62×51mm NATO and 5.56×45mm NATO, both of which remain in current U.S. and NATO service. It remains a very popular sporting round, with ammunition produced by all major manufacturers. History In the early-1890s, the U.S. military adopted the smokeless powder .30-40 Krag rimmed cartridge. The 1894 version of that cartridge used a round-nose bullet. Around 1901, the U.S. started developing an experimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30-03
The .30-03 Springfield (7.62×65mm) was a short-lived cartridge developed by the United States in 1903, to replace the .30-40 Krag in the new Springfield 1903 rifle. The .30-03 was also called the .30-45, since it used a 45 grain () powder charge; the name was changed to .30-03 to indicate the year of adoption.''Cartridges of the World'' (11th Edition), Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, pp.130,164 It used a 220 grain () roundnose bullet. It was replaced after only three years of service by the .30-06, firing a spitzer bullet giving better ballistic performance. Initial development The .30-03 was developed to replace the .30-40 Krag cartridge used in the Krag–Jørgensen rifle, which was the first bolt action rifle adopted by the US military, and the first that used smokeless powder. The Krag–Jørgensen rifle had some serious limitations compared to the new Mauser rifles being used by European armies; it was loaded one round at a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1903 Springfield
The M1903 Springfield, officially the United States Rifle, Caliber .30-06, Model 1903, is an American five-round magazine-fed, bolt-action service repeating rifle, used primarily during the first half of the 20th century. The M1903 was first used in combat during the Philippine–American War, and it was officially adopted by the United States as the standard infantry rifle on June 19, 1903, where it saw service in World War I, and was replaced by the faster-firing semi-automatic eight-round M1 Garand starting in 1936. However, the M1903 remained in service as a standard issue infantry rifle during World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ..., since the U.S. entered the war without sufficient M1 rifles to arm all troops. It also remained in service as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1903 Springfield Rifle
The M1903 Springfield, officially the United States Rifle, Caliber .30-06, Model 1903, is an American five-round magazine A magazine is a periodical publication, generally published on a regular schedule (often weekly or monthly), containing a variety of content. They are generally financed by advertising Advertising is the practice and techniques emplo ...-fed, bolt-action Bolt-action is a type of manual firearm action that is operated by ''directly'' manipulating the bolt via a bolt handle, which is most commonly placed on the right-hand side of the weapon (as most users are right-handed). Most bolt-actio ... service repeating rifle A repeating rifle is a single- barreled rifle A rifle is a long-barreled firearm A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Lega ..., used primarily during the first half of the 20th century. The M1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartridge (weaponry)
A cartridge or a round is a type of pre-assembled firearm ammunition packaging a projectile (bullet, shot (pellet), shot, or shotgun slug, slug), a propellant substance (usually either smokeless powder or black powder) and an ignition device (primer (firearm), primer) within a metallic cartridge, metallic, paper cartridge, paper, or polymer-cased ammunition, plastic case that is precisely made to fit within the gun barrel, barrel chamber (firearms), chamber of a breechloading gun, for the practical purpose of convenient transportation and handling during shooting. Although in popular usage the term "bullet" is often informally used to refer to a complete cartridge, it is correctly used only to refer to the projectile. Cartridges can be categorized by the type of their primers – a small charge of an shock sensitivity, impact- or electronic firing, electric-sensitive chemical mixture that is located: at the center of the #Case, case head (centerfire); inside the rim (firearms), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Improved Military Rifle
Improved military rifle propellants are tubular nitrocellulose propellants evolved from World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe Europe is a large peninsula conventionally considered a continent in ... through World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ... for loading military and commercial ammunition and sold to civilians for reloading rifle ammunition for hunting and target shooting. These propellants were DuPont DuPont de Nemours, Inc., commonly shortened to DuPont, is an American multinational chemical company first formed in 1802 by French-American chemist and industrialist Éleuthère Irénée du Pont d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliber
In guns, particularly firearm A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions). The first firearms originated in 10th-century China China, off ...s, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel 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 millimeters. 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 "45 caliber" firearm has a barrel diameter of roughly . 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
303 British
The .303 British (designated as the 303 British by the C.I.P. and SAAMI) or 7.7×56mmR, is a calibre rimmed rifle cartridge. The .303 inch bore diameter is measured between rifling lands as is the common practice in Europe which follows the traditional black powder convention. It was first manufactured in Britain as a stop-gap black powder round put into service in December 1888 for the Lee–Metford rifle. From 1891 the cartridge used smokeless powder which had been the intention from the outset, but the decision on which smokeless powder to adopt had been delayed. It was the standard British and Commonwealth military cartridge for rifles and machine guns from 1889 until the 1950s when it was replaced by the 7.62×51mm NATO. Cartridge specifications The .303 British has 3.64 ml (56 grains H2O) cartridge case capacity. The pronounced tapering exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boat-tail Bullet
External ballistics or exterior ballistics is the part of ballistics Ballistics is the field of mechanics concerned with the launching, flight Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere (i.e. air flight o ... that deals with the behavior of a projectile in flight. The projectile may be powered or un-powered, guided or unguided, spin or fin stabilized, flying through an atmosphere or in the vacuum of space, but most certainly flying under the influence of a gravitational field. Gun-launched projectiles may be unpowered, deriving all their velocity from the propellant A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, ...'s ignition until the projectile exits the gun barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spitzer (bullet)
The spitzer bullet (or spire point) is a pointed projectile that is primarily used in small-arms. The pointed nose shape, which was developed for military purposes in the late 19th and early 20th century, was a major design improvement compared to earlier rounder or flatter-tipped bullets because pointed nose shapes were less susceptible to external ballistic factors like drag. By adding a point, projectiles made for fully-powered and intermediate rifle cartridges, obtain a lower drag coefficient which makes them decelerate less rapidly. Lowering the drag coefficient leads to improved external ballistic behaviour. The development of spitzer bullets and long-range volley sights for service rifles changed military doctrines. Area targets at ranges up to could be subject to rifle fire. With improvements in machine guns at the turn of the 20th Century, the addition of clinometers meant that fixed machine gun squads could deliver plunging fire or indirect fire at more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
30-40 Krag
The .30-40 Krag (also known as .30 U.S. and .30 Army) was a cartridge developed in the early 1890s to provide the U.S. armed forces with a smokeless powder cartridge suited for use with modern small-bore repeating rifles to be selected in the 1892 small arm trials. Since the cartridge it was replacing was the .45-70 Government, the round was considered ''small-bore'' at the time. The design selected was ultimately the Krag–Jørgensen, formally adopted as the M1892 Springfield. It was also used in M1893 and later Gatling gun The Gatling gun is a rapid-firing multiple-barrel firearm invented in 1861 by Richard Jordan Gatling. It is an early machine gun A machine gun is a fully automatic, rifled autoloading firearm A firearm is any type of gun design ...s. History and development Though the U.S. Navy and Marine Corps had adopted limited numbers of smokeless powder and bolt-action rifles, the .30-40 was the first cartridge adopted by the US Army that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballistic Coefficient
In ballistics Ballistics is the field of mechanics concerned with the launching, flight Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere (i.e. air flight o ..., the ballistic coefficient (BC, ''C'') of a body is a measure of its ability to overcome air resistance in flight. It is inversely proportional to the negative acceleration: a high number indicates a low negative acceleration—the drag on the body is small in proportion to its mass. BC can be expressed with the units kilogram The kilogram (also kilogramme) is the unit of mass in the International System of Units (SI), having the unit symbol kg. It is a widely used measure in science, engineering and commerce worldwide, and is often simply called a kilo colloquiall ...s per square meter (kg/m2) or pounds per square inch Measuring tape with inches The inch (symbol: in or ″) is a unit of length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6mm Lee Navy
The 6mm Lee Navy (6×60mmSR), also known as the 6mm U.S.N.Hanson, Jim, ''The 6mm U.S.N. - Ahead Of Its Time'', ''Rifle Magazine'', Vol. 9, No. 1 (January–February 1977), pp. 38-41 or .236 Navy, is an obsolete American rifle A rifle is a long-barreled firearm A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions). The first firearms originated ... cartridge. It was the service cartridge of the United States Navy and Marine Corps from 1895 (replacing the .45-70 Government round) to 1899, when it was replaced by the .30-40 Krag. History and development By 1894, the U.S. Navy desired to adopt a modern small-bore, smokeless powder service cartridge and rifle in keeping with other first-line naval powers for both naval and marine forces.Sampson, W.T., ''Annual Reports of the Navy Department: Report of Chief of Bureau of Ordnance'', Washington, D.C.: U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
