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Last update: Monday 15th of March 2010 MxPx »
MuzzleA gun's muzzle velocity is the speed at which the projectile leaves the muzzle of the gun. Muzzle velocities range from subsonic (below 330 m·s-1 / ~1083 ft/s) for some pistols to more than 1,800 m·s-1 (~5906 ft/s) for tank guns firing kinetic energy penetrator ammunition. The latter velocity is close to the limit achievable with chemical propellants. In conventional guns using gunpowder, muzzle velocity is determined by the quality (burn speed, expansion) and quantity of the propellant, the mass of the projectile, and the length of the barrel. A slower burning propellant needs a longer barrel to burn completely, but can on the other hand use a heavier projectile. A faster burning propellant may accelerate a lighter projectile to higher speeds if the same amount of propellant is used. In a gun, the pressure resulting from the process is a limiting factor and a balance between propellant quality and quantity, projectile mass and barrel length must be found if both safety and optimal performance is to be found. The velocity of a projectile is highest at the muzzle and drops off steadily due to air resistance. Generally, lighter projectiles lose velocity more rapidly than heavier ones. While a lighter projectile will move faster, it will not carry more kinetic energy and if physically smaller, must carry a smaller internal explosive charge if it is to deliver kinetic energy equivalent to a heavier round. As the gun's propellant charge is mostly burned before the projectile has moved very far down the barrel, adding length to the barrel will not indefinitely increase the muzzle velocity. Large naval guns will have length to diameter ratios of 38:1 to 50:1. There is much interest in modernizing naval weaponry by using electrically driven railguns, which overcome the limitations noted above. With railguns, a constant acceleration is provided along the entire length of the device, greatly increasing the muzzle velocity. There is also a significant advantage in not having to carry explosive propellant and even the projectile internal charges may be eliminated due to the high velocity - the projectile becomes a strictly kinetic weapon.
Muzzle Mp3 DownloadsDownload audio files (mp3 and wma) with Muzzle Songs using these download websites. The list will be updated perciodically.Muzzle RingtonesYou can get any Muzzle ringtone you like (realtone, polyphonic, mono tone, mp3 ringtone) using the next service:
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Muzzle in the news
Face flies, Musca autumnalis , are so named because they gather around the eyes and muzzles of livestock, particularly cattle. They may also be found on the withers, neck, brisket, and sides. Their mouthparts are adapted for sponging up saliva, tears, and mucus. Face flies are usually not considered blood feeders because their mouthparts are not p The White House continues to try to hide what is really going on, in order to please right wing supporters. The gutting of a German shepherd was inflicted while the dog was still alive, according to the autopsy report . The dog was found dumped along a rural road in Fairfield Township in May. His muzzle had been bound with duct tape. The dog apparently bit off its own tongue as a result of the torture. A reward has been offered for information.
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