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10 Metre Air Rifle
10 metre air rifle (N.B. For "Meter" in this article – read "Metre") is an International Shooting Sports Federation (ISSF) shooting event, shot at a bullseye target over a distance of using a calibre air rifle with a maximum weight of . It is one of the ISSF-governed shooting sports included in the Summer Olympics since the 1984 Los Angeles Games. Shots are fired from the standing position only, as opposed to some other airgun disciplines such as for three positions (popular in the United States) or in disabled sports, which allows sitting and prone positions. Due to the low recoil of air guns and the need for stability, the shooter frequently adopts a deliberately lordotic and scoliotic posture, which allows the non-dominant elbow to be rested against the chest to support the forearm and improves the stability of the shooting stance. The use of specialized rigidly padded vest is allowed to prevent chronic back injury, which can be caused by prolonged asymmetric load on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISSF Shooting Events
The International Shooting Sport Federation recognizes several shooting events, some of which have Olympic status. They are divided into four disciplines: rifle, pistol, shotgun and running target. The main distinctions between different rifle events are the distances to the target and the shooting positions used. For the other disciplines, the position is always standing, and changes include limits to shooting times and different types of targets. The present events Discontinued events Due to the ISSF, some Olympic events have been discontinued in the past. In total, Forty-five ISSF events have been discontinued. Common principles All ISSF shooting events consist of ''precision'' shooting in the sense that only the position of the shot on the target determines the result, not the time used to produce that shot (provided the time was within the set constraints, of course). This separates them from International Practical Shooting Confederation events and other kinds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elbow
The elbow is the region between the arm and the forearm that surrounds the elbow joint. The elbow includes prominent landmarks such as the olecranon, the cubital fossa (also called the chelidon, or the elbow pit), and the lateral and the medial epicondyles of the humerus. The elbow joint is a hinge joint between the arm and the forearm; more specifically between the humerus in the upper arm and the radius and ulna in the forearm which allows the forearm and hand to be moved towards and away from the body. The term ''elbow'' is specifically used for humans and other primates, and in other vertebrates forelimb plus joint is used. The name for the elbow in Latin is ''cubitus'', and so the word cubital is used in some elbow-related terms, as in ''cubital nodes'' for example. Structure Joint The elbow joint has three different portions surrounded by a common joint capsule. These are joints between the three bones of the elbow, the humerus of the upper arm, and the radius and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Regulator
A pressure regulator is a valve that controls the pressure of a fluid or gas to a desired value, using negative feedback from the controlled pressure. Regulators are used for gases and liquids, and can be an integral device with a pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve. Two types are found: The pressure reduction regulator and the back-pressure regulator. *A pressure reducing regulator is a control valve that reduces the input pressure of a fluid or gas to a desired value at its output. It is a normally-open valve and is installed upstream of pressure sensitive equipment. *A back-pressure regulator, back-pressure valve, pressure sustaining valve or pressure sustaining regulator is a control valve that maintains the set pressure at its inlet side by opening to allow flow when the inlet pressure exceeds the set value. It differs from an over-pressure relief valve in that the over-pressu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airgun
An air gun or airgun is a gun that fires projectiles pneumatically with compressed air or other gases that are mechanically pressurized ''without'' involving any chemical reactions, in contrast to a firearm, which pressurizes gases ''chemically'' via oxidation of combustible propellants that generates propulsive energy by breaking molecular bonds. Air guns come in both long gun (air rifle) and handgun (air pistol) forms. Both types typically propel metallic projectiles that are either diabolo-shaped pellets or spherical shots called BBs, although in recent years Minié ball-shaped cylindro-conoidal projectiles called slugs are gaining more popularity. Certain types of air guns (usually air rifles) may also launch fin-stabilized projectile such as darts (e.g., tranquilizer guns) or hollow-shaft arrows (so-called "airbows"). The first air guns were developed as early as the 16th century, and have since been used in hunting, shooting sport and even in warfare. There are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paper Target
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets by hand, almost all is now made on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing, painting, graphics, signage, design, packaging, decorating, writing, and cleaning. It may also be used as filter paper, wallpaper, book endpaper, conservation paper, laminated worktops, toilet tissue, or currency and security paper, or in a number of industrial and construction processes. The papermaking process developed in east Asia, probably China, at least as early as 105 CE, by the Han court eunuch Cai Lun, although the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wadcutter
A wadcutter is a special-purpose flat-fronted bullet specifically designed for shooting paper targets, usually at close range and at subsonic velocities typically under approximately 900 ft/s (274 m/s). Wadcutters have also found favor for use in self-defense guns, such as .38 caliber snubnosed revolvers, where, due to short barrel lengths, maximum bullet velocities are usually low, typically under 900 ft/s (274 m/s), and improved lethality is desired. Wadcutters are often used in handgun and airgun competitions. Bullet profile A wadcutter has a flat or nearly flat front that is typically as wide as the caliber size or only slightly smaller in diameter than caliber size. For target shooting, a wadcutter cuts a very clean hole through the paper target, making it easier to score and ideally reducing errors in scoring the target in the favor of the shooter. Because the flat nosed bullet is not well suited for feeding out of a magazine, wadcutters are normally use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pellet (air Gun)
A pellet is a non-spherical projectile designed to be shot from an air gun, and an airgun that shoots such pellets is commonly known as a pellet gun. Air gun pellets differ from bullets and shot used in firearms in terms of the pressures encountered; airguns operate at pressures as low as 50 atmospheres, while firearms operate at thousands of atmospheres. Airguns generally use a slightly undersized projectile that is designed to obturate upon shooting so as to seal the bore, and engage the rifling; firearms have sufficient pressure to force a slightly oversized bullet to fit the bore in order to form a tight seal. Since pellets may be shot through a smoothbore barrel, they are often designed to be inherently stable, much like the Foster slugs used in smoothbore shotguns. Types Diabolo pellet The diabolo pellet (or "wasp waist pellet") is the most common design traditionally found in airguns. It consists of a solid front portion called the ''head'', which can have a flat ("w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minute And Second Of Arc
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of one degree. Since one degree is of a turn (or complete rotation), one minute of arc is of a turn. The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near . A minute of arc is of a radian. A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol , is of an arcminute, of a degree, of a turn, and (about ) of a radian. These units originated in Babylonian astronomy as sexagesimal subdivisions of the degree; they are used in fields that involve very small angles, such as astronomy, optometry, ophthalmology, optics, navigation, land surveying, and marksmanship. To express even smaller angles, standard SI prefixes can be employed; the milliarcsecond (mas) and microarcsecond (μas), for instance, are commonly used in astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shooting Target
Shooting targets are objects in various forms and shapes that are used for pistol, rifle, shotgun and other shooting sports, as well as in darts, target archery, crossbow shooting and other non-firearm related sports. The center is often called the bullseye. Targets can for instance be made of paper, "self healing" rubber or steel. There are also electronic targets that electronically can provide the shooter with precise feedback of the shot placement. History Most targets used in shooting sports today are abstract figures of which origins often are not given much thought, but given the military and hunting origins that started most shooting disciplines it is not hard to understand that many of the targets at some point originally resembled either human opponents in a battle or animals in a hunting situation. For instance, the well known circular bullseye target might originally have resembled a human torso or an animal being hunted. Notable instances of shooting targets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Target
Electronic may refer to: *Electronics, the science of how to control electric energy in semiconductor * ''Electronics'' (magazine), a defunct American trade journal * Electronic storage, the storage of data using an electronic device * Electronic commerce or e-commerce, the trading in products or services using computer networks, such as the Internet *Electronic publishing or e-publishing, the digital publication of books and magazines using computer networks, such as the Internet *Electronic engineering, an electrical engineering discipline Entertainment * Electronic (band), an English alternative dance band ** ''Electronic'' (album), the self-titled debut album by British band Electronic *Electronic music, a music genre * Electronic musical instrument * Electronic game, a game that employs electronics See also * Electronica, an electronic music genre *Consumer electronics Consumer electronics or home electronics are electronic (analog or digital) equipment intended for ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISSF World Cup
The ISSF World Cup was introduced by the International Shooting Sport Federation in 1986 to provide a homogeneous system for qualification to the Olympic shooting competitions. It still is carried out in the Olympic shooting events, with four competitions per year in each event. For the best shooters there is since 1988 a ''World Cup Final''. World Cup Final The World Cup Final in rifle and pistol is often, but not always, held in Munich as the ISSF shooting season ending competition. The location and date of the World Cup Final in shotgun are more flexible. To the Final, the following shooters are qualified: * The defending Olympic, World, ISSF World Cup Final champions. * Silver and bronze medalists of either the last Olympic or the World Championship, whichever competition that was most recently held. * The eight shooters that have made the best performances at the World Cup competitions during the year. For rating the performances, a special score system is used by taking into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISSF World Shooting Championships
The ISSF World Shooting Championships are governed by the International Shooting Sport Federation. World Shooting Championships began in 1897, after the successful 1896 Summer Olympics, and although the ISSF was not founded until 1907, these early competitions are still seen by the organization as the beginning of a continuous row of championships. By this logic, the 2006 competition in Zagreb was called the 49th ISSF World Shooting Championships. These championships, including all ISSF shooting events, are held every four years since 1954. For the shotgun events only, there is an additional World Championship competition in odd-numbered years. These extra competitions are not numbered. In running target, there will be World Championships in Olympic years. ISSF World Shooting Championships The World Championships were held each year from 1897 to 1931, with the exception of the years 1915–1920 (interruption by World War I) and 1926. From 1933 to 1949, they were held biennially, al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
