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By forcing the bullet to spin as it travels down the barrel of the weapon the precision is greatly increased. At the same time, the rifling leaves marks on the bullet that are indicative of that particular barrel. Prior to mass production of firearms, each barrel and bullet mold was hand made by gunsmiths making them unique. [7]
Bibb v. Navajo Freight Lines, Inc., 359 U.S. 520 (1959), is a United States Supreme Court case in which the Court held that the Illinois law requiring trucks to have unique mudguards was unconstitutional under the Commerce clause.
Armor-piercing (AP): A hard bullet made from steel or tungsten alloys in a pointed shape typically covered by a thin layer of lead and or a copper or brass jacket. The lead and jacket are intended to prevent barrel wear from the hard-core materials. AP bullets are sometimes less effective on unarmored targets than FMJ bullets are.
Founded in 1947 in California, Sierra Bullets is an American manufacturer of bullets intended for firearms. Based in Sedalia, Missouri since 1990, Sierra manufactures a very wide range of bullets for both rifles and pistols. Sierra bullets are used for precision target shooting, hunting and defense purposes.
The following list of modern armament manufacturers presents major companies producing modern weapons and munitions for military, paramilitary, government agency and civilian use.
China has 26,000 miles of high-speed rail, but in the U.S., there’s only a measly 375 miles of track that can handle more than 100 miles per hour, which isn’t even close to the 200-plus mph ...
Bullet parts: 1 metal jacket, 2 lead core, 3 steel penetrator. Terminal ballistics is a sub-field of ballistics concerned with the behavior and effects of a projectile when it hits and transfers its energy to a target. Bullet design (as well as the velocity of impact) largely determines the effectiveness of penetration. [1]
A smart bullet is a bullet that is able to do something other than simply follow its given trajectory, such as turning, changing speed or sending data. Such a projectile may be fired from a precision-guided firearm capable of programming its behavior. It is a miniaturized type of precision-guided munition.