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The QuickLOAD interior ballistics predictor program also contains the external ballistics predictor computer program QuickTARGET. QuickTARGET is based on the Siacci/Mayevski G1 model and gives the user the possibility to enter several different BC G1 constants for different speed regimes to calculate ballistic predictions that more closely ...
A typical 4.5 mm (.177 in) 10 m air rifle match pellet. For the 10-meter air rifle and air pistol disciplines, match-grade diabolo pellets are used. These pellets are wadcutter, meaning the pellet head is nearly completely flat. This leaves smooth-edged round holes in paper targets and allows easy gauging for scoring. Match pellets are offered ...
If the rifleman wishes to adjust his rifle to strike a target at a distance instead of along an incline, he needs to adjust the bore angle of his rifle so that the bullet will strike the target at . This requires adjusting the rifle to a horizontal zero distance setting of R Z e r o = R H cos ( α ) {\displaystyle R_{Zero}=R_{H}\cos(\alpha )} .
This is an important consideration in locations where air guns are legally restricted by muzzle energy. Because a .177 pellet is lighter than a larger caliber pellet of similar design, the .177 pellet can be propelled faster and therefore on a flatter trajectory , without exceeding the legal limit on energy.
The Girandoni air rifle is an air gun designed by Italian inventor Bartolomeo Girandoni circa 1779. The weapon was also known as the Windbüchse ("wind rifle" in German ). One of the rifle's more famous associations is its use on the Lewis and Clark Expedition to explore and map the Louisiana Purchase of 1803.
This schlieren image of a bullet travelling in free-flight demonstrates the air-pressure dynamics surrounding the bullet. External ballistics or exterior ballistics is the part of ballistics 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 ...
In ballistics, the ballistic coefficient (BC, C b) of a body is a measure of its ability to overcome air resistance in flight. [1] 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.
Miller twist rule is a mathematical formula derived by American physical chemist and historian of science Donald G. Miller (1927-2012) to determine the rate of twist to apply to a given bullet to provide optimum stability using a rifled barrel. [1]