Search results
Results from the WOW.Com Content Network
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.
The GP 11 projectile had a ballistic coefficient (G1 BC) of 0.505 to 0.514 (ballistic coefficients are somewhat debatable) and had a maximum terminal range of approximately 5,500 m (6,015 yd) under Swiss chosen atmospheric conditions (altitude = 800 m (2,625 ft), air pressure = 649 mm (25.55 in) Hg, temperature = 7 °C (45 °F)) equaling ICAO ...
The earliest airgun pellets are actually small round lead shots similar to those used in muskets.First popularized by the Daisy BB Gun in the 1890s, a spring-piston airgun that shot "BB"-size birdshots, the .180-caliber lead shots were later replaced by the lighter .175-caliber steel shots modified from bearing balls, and remained popular as a plinking/pest shooting projectile due to the ...
Most VLD bullets are used in rifles. VLD bullets typically have a ballistic coefficient greater than 0.5, although the threshold is undefined. [1] Bullets with a lower drag coefficient decelerate less rapidly. A low drag coefficient flattens the projectile's trajectory and also markedly decreases the lateral drift caused by crosswinds. The ...
The range at which game is typically encountered and the penetration needed to assure a clean kill must both be considered. Local hunting regulations may also specify a size range for certain game. Shot loses its velocity very quickly due to its low sectional density and ballistic coefficient (see external ballistics). Generally, larger shot ...
An example of such a special .416 Barrett very low drag extreme range bullet is the German CNC manufactured mono-metal 27.5 gram (424 gr) .416 Barrett MSG (G1 BC ≈ 1.103 – this ballistic coefficient (BC) is calculated by its designer, Mr. Lutz Möller, and not proven by Doppler radar measurements).
Muzzle energy is dependent upon the factors previously listed, and velocity is highly variable depending upon the length of the barrel a projectile is fired from. [2] Also the muzzle energy is only an upper limit for how much energy is transmitted to the target, and the effects of a ballistic trauma depend on several other factors as well.
This allows the manufacturer to maintain a greater consistency in tip shape and thus aerodynamic properties among bullets of the same design, at the expense of a slightly decreased ballistic coefficient and higher drag. The result is a slightly decreased overall accuracy between bullet trajectory and barrel direction, as well as an increased ...