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Field Target
Field target is an outdoor airgun field shooting sport. Competitions are usually fired at self indicating steel targets placed between . There are two classes; ''Piston'' for spring-piston air guns, and ''PCP'' for pre-charged pneumatic air guns. In sanctioned competitions, the same competition rule set is used around most of the world. A small match can consist of 40 to 60 rounds, while the world championship consists of 150 rounds. It is common to use scope sights with high magnification and a short depth of field such that an adjustable parallax knob can be used to precisely determine the target distance. The target kill zones have three standardised sizes, which are 15 mm (placed between 12 and 23 m), 25 mm (placed between 7 and 37 m) or 40 mm (placed between 7 and 42 m). History The sport originated by the National Air Rifle and Pistol Association in the United Kingdom in 1980, and spread to the USA during the mid-1980s. In 1987, the Ameri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Field Target Federation
The World Field Target Federation (WFTF) is the governing body for the shooting sport discipline of Field target. The WFTF specifies and regulates World Championship, International or other major field target events. The WFTF has 43 member federations spread across all 6 continents. Administration The WFTF is managed by a president elected by nomination and majority vote from representatives of each National governing body, National Governing Body (NGB) who serves for a period of three years. Management of the world championship is the responsibility of the chairman of the hosting countries NGB and will act as Vice-President of the federation until the end of the hosted championship. World Championships Categories Field target is contested on an open competition basis, with all competitors eligible to win the overall championship in their class. There are two classes of shooting: * Precharged (for competitors using Air gun#Pre-charged pneumatic, PCP air rifles) * Spring (for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trajectory
A trajectory or flight path is the path that an object with mass in motion follows through space as a function of time. In classical mechanics, a trajectory is defined by Hamiltonian mechanics via canonical coordinates; hence, a complete trajectory is defined by position and momentum, simultaneously. The mass might be a projectile or a satellite. For example, it can be an orbit — the path of a planet, asteroid, or comet as it travels around a central mass. In control theory, a trajectory is a time-ordered set of states of a dynamical system (see e.g. Poincaré map). In discrete mathematics, a trajectory is a sequence (f^k(x))_ of values calculated by the iterated application of a mapping f to an element x of its source. Physics of trajectories A familiar example of a trajectory is the path of a projectile, such as a thrown ball or rock. In a significantly simplified model, the object moves only under the influence of a uniform gravitational force field. This can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-charged Pneumatic
An air gun or airgun is a gun that uses energy from compressed air or other gases that are mechanically pressurized and then released to propel and accelerate projectiles, similar to the principle of the primitive blowgun. This is in contrast to a firearm, which shoots projectiles using energy generated via exothermic combustion (detonation) of chemical propellants, most often black powder or smokeless powder. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Field Target Association
The British Field Target Association (BFTA) is the governing body of field target shooting in England, Scotland and Wales. Management and Officers The BFTA elects the positions of chairman, secretary and treasurer at its Annual General Meeting whom hold the position for a period of one year. Competitions The BFTA runs several competitions throughout the year and maintains national gradings based on performance at nominated events. * Grand Prix Series * British Championships * Inter-Regionals * Masters & Showdown * European Championships Grading Shooters are graded on a rolling average of their previous 20 scores from national or regional Field Target events shot to BFTA rule and the grades are banded as follows: * AA grade shooters are those with an average score of 85% or above. * A grade shooters are those with an average score greater than or equal to 75% and less than 85%. * B grade shooters are those with an average score greater than or equal to 65% and less than 75%. * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Game (food)
Game or quarry is any wild animal hunted for animal products (primarily meat), for recreation (" sporting"), or for trophies. The species of animals hunted as game varies in different parts of the world and by different local jurisdictions, though most are terrestrial mammals and birds. Fish caught non- commercially (recreational fishing) are also referred to as game fish. By continent and region The range of animal species hunted by humans varies in different parts of the world. This is influenced by climate, faunal diversity, popular taste and locally accepted views about what can or cannot be legitimately hunted. Sometimes a distinction is also made between varieties and breeds of a particular animal, such as wild turkey and domestic turkey. The flesh of the animal, when butchered for consumption, is often described as having a "gamey" flavour. This difference in taste can be attributed to the natural diet of the animal, which usually results in a lower fat conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windage
In aerodynamics, firearms ballistics, and automobiles, windage is the effects of some fluid, usually air (e.g., wind) and sometimes liquids, such as oil. Aerodynamics Windage is a force created on an object by friction when there is relative movement between air and the object. Windage loss is the reduction in efficiency due to windage forces. For example, electric motors are affected by friction between the rotor and air. Large alternators have significant losses due to windage. To reduce losses, hydrogen gas may be used, since it is less dense. Causes of windage are: * The object is moving and being slowed by resistance from the air. * A wind is blowing, producing a force on the object. The term can refer to: * The effect of the force, for example the deflection of a missile or an aircraft by a cross wind. * The area and shape of the object that make it susceptible to friction, for example those parts of a boat that are exposed to the wind. Aerodynamic streamlining can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crosshair
A reticle or reticule, also known as a graticule or crosshair, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, to provide measurement references during visual inspections. Today, engraved lines or embedded fibers may be replaced by a digital image superimposed on a screen or eyepiece. Both terms may be used to describe any set of patterns used for aiding visual measurements and calibrations, but in modern use ''reticle'' is most commonly used for weapon sights, while ''graticule'' is more widely used for non-weapon measuring instruments such as oscilloscope display, astronomic telescopes, microscopes and slides, surveying instruments and other similar devices. There are many variations of reticle pattern; this article concerns itself mainly with the most rudimentary reticle: the crosshair. Crosshairs are typically represented ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gun Barrel
A gun barrel is a crucial part of gun-type weapons such as small arms, small firearms, artillery pieces, and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is used to propel a projectile out of the front end (muzzle (firearms), muzzle) at a high velocity. The hollow interior of the barrel is called the bore, and the diameter of the bore is called its calibre, usually measured in inches or millimetres. The first firearms were made at a time when metallurgy was not advanced enough to cast tubes capable of withstanding the explosive forces of early cannons, so the pipe (often built from staves of metal) needed to be braced periodically along its length for structural reinforcement, producing an appearance somewhat reminiscent of storage barrels being stacked together, hence the English name. History Gun barrels are usually made of some type of metal or Alloy, metal alloy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation (ballistics)
In ballistics, the elevation is the angle between the horizontal plane and the axial direction of the barrel (firearms), barrel of a gun, Mortar (weapon), mortar or heavy artillery. Originally, elevation was a ''linear'' measure of how high the gunners had to physically lift the muzzle (firearm), muzzle of a gun up from the gun carriage to compensate for projectile drop and hit targets at a certain distance. Until WWI Though early 20th-century firearms were relatively easy to fire, artillery was not. Before and during World War I, the only way to effectively fire artillery was plotting points on a plane. Most artillery units seldom employed their guns in small numbers. Instead of using pin-point artillery firing they used old means of "fire for effect" using artillery en masse. This tactic was employed successfully by past armies. By World War I, reasonably accurate artillery fire was possible even at long range requiring significant elevation. However, artillery tactics used i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescopic Sight
A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. It is equipped with some form of a referencing pattern – known as a ''reticle'' – mounted in a focally appropriate position in its optical system to provide an accurate point of aim. Telescopic sights are used with all types of systems that require magnification in addition to reliable visual aiming, as opposed to non-magnifying iron sights, reflector (reflex) sights, holographic sights or laser sights, and are most commonly found on long-barrel firearms, particularly rifles, usually via a scope mount. Similar devices are also found on other platforms such as artillery, tanks and even aircraft. The optical components may be combined with optoelectronics to add night vision or smart device features. History The first experiments directed to give shooters optical aiming aids go back to the early 17th century. For centuries, different optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butt Hooks
Butt may refer to: Literature * ''Butt'' (magazine) * ''The Butt'', a 2008 novel by Will Self * ''Der Butt'', German title of ''The Flounder'' (1977), Günter Grass novel People * Butt (surname) * Bhat, a surname in India and Pakistan, also spelled as Butt Measurement * Butt (unit), a measure of volume * Butt, an English wine cask size Other uses * Buttocks * Butt joint, a woodworking joinery technique * Buttstock or butt, the back part of a rifle or other firearm * Headbutt, blow administered with the head * Cigarette butt (or cigarette) * Boston butt or pork butt, a shoulder cut of pork * Water butt, a rainwater tank * Archery butt, practice target * Butt splice connector, a type of crimp electrical connector * "Butt Butt", a song by Monrose from ''Temptation'' * Butt Drugs, a former drugstore in Corydon, Indiana See also * BUT (other) * Butte (other) * Butts (other) Butts may refer to: People * Butts (surname) * Bob Butler (1891–1959), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stock (firearm)
A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock, or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing mechanism are attached. The stock also provides a means for the shooter to firmly brace the gun and easily aim with stability by being held against the user's shoulder when shooting the gun, and helps to counter muzzle rise by transmitting recoil straight into the shooter's body. The tiller of a crossbow is functionally the equivalent of the stock on a gun. History and etymology The term stock in reference to firearms dates to 1571 is derived from the Germanic word ''Stock'', meaning tree trunk, referring to the wooden nature of the gunstock. Early hand cannons used a simple stick fitted into a socket in the breech end to provide a handle. The modern gunstock shape began to evolve with the introduction of the arquebus, a matchlock with a longer barrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
