Ammunition armor-piercing bullet

Should some types of ammunition be banned, such as armor-piercing or cop-killer bullets ... 

Under federal law, silencers are treated in the same category as automatic weapons. Armor-piercing ammunition (popularly called cop-killer bullets) were banned in 1986, with an expanded definition of banned bullets in the Violent Crime Control and Law Enforcement Act of 1994 that includes bullets made of tungsten, beryllium, depleted uranium, and other exotic materials. Other accessories can also cause a weapon to be banned (see Assault Weapons above). 

Their policies range from the permissive (all law-abiding adults) to the highly restrictive (must show a definite need), cop-killer bullet Term for armor-piercing ammunition popularized by gun control advocates. The term gets its name on the basis that it especially endangers police wearing bullet-proof vests, curios and relics Firearms that are at least 50 years old or that are considered (because of their scarcity, historical value, or unusual nature) to be collector s items. A federal firearms license (FFL) is required for interstate purchase of such firearms. 

Armor-piercing (AP) ammunition has a projectile or projectile core constructed entirely from a combination of tungsten alloys, steel, iron, brass, bronze, beryllium copper, or depleted uranium. The most effective AP bullets are usually confined to rifle bullets, as velocity and range are important factors in AP requirements. Some revolver and pistol ammunition is described as metal piercing but, although it would be effective against vehicle bodywork and some body armor, it would be ineffective against heavy armor plate. AP bullets are, with very few exceptions, jacketed. 

Other incendiary compositions used in older ammunition were potassium chlorate based with a mixture of potassium chlorate and mercury sulfocyanide as the priming composition. Another older incendiary composition consisted of potassium nitrate, magnesium, aluminum, and lead oxide.72,73 Multipurpose filled bullets are also manufactured, for example, armor piercing/incendiary, armor piercing/tracer, and spotter tracer bullets, which leave a visible trace and produce a puff of smoke on impact. One such smoke charge is lead dioxide 85% and powdered aluminum 15%. There... 

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