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In January 2009 the Finnish ammunition manufacturer Lapua published Doppler radar tests derived drag coefficient data for most of their rifle projectiles. [1] [2] The predictive capabilities of the custom mode are based on actual bullet flight data derived from Doppler radar test sessions. With this data engineers can create algorithms that ...
Now, with modern reloads, the .500 Jeffery can launch a 600-grain bullet at a muzzle velocity ranging from 2,450 to 2,500 ft/s (750 to 760 m/s), generating 7,995 ft⋅lbf (10,840 J) to 8,100 ft⋅lbf (11,000 J) Newer reloads made the .500 Jeffery the most powerful production cartridge in the world until the introduction of the .460 Weatherby ...
Values courtesy of the Hornady Ballistic Calculator [11] Altitude: 500 ft (150 m) Temperature: 90 °F (32 °C) It is evident that the .416 Remington Magnum is a ballistically superior cartridge to the .458 Winchester Magnum and has a trajectory close to that of the .375 H&H Magnum.
The .500 S&W Magnum has a maximum working pressure of 60,000 psi (4,100 bar). However, most factory ammunition is limited to 50,000 psi (3,400 bar) to help ease extraction of fired cases. The cylinders of the S&W Model 500 revolver are engineered to be capable of withstanding 50% over pressure.
The ballistic coefficient of an atmospheric reentry vehicle has a significant effect on its behavior. A very high ballistic coefficient vehicle would lose velocity very slowly and would impact the Earth's surface at higher speeds. In contrast, a low ballistic coefficient vehicle would reach subsonic speeds before reaching the ground. [75]
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 through an atmosphere or in the vacuum of space, but most certainly flying under the influence of a gravitational field.
However, unlike the .357 Magnum being developed from the less powerful .38 Special, the .500 Special was designed after the more powerful .500 Magnum. The purpose of the .500 Special is to be able to shoot less punishing loads, with a muzzle energy closer to that of the .44 Magnum cartridge, in firearms chambered for the .500 S&W Magnum.
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. There is wide variation in commercial ammunition. A 180 gr (12 g) bullet fired from .357 Magnum handgun can achieve a muzzle energy of 580 ft⋅lbf (790 J). A 110 gr (7.1 ...