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Contrary to popular belief enviromento-nut hysteria, depleted Uranium isn't particularly radioactive, not much more than anything else and not dangerously so. That's why it is called depleted. Depleted uranium is toxic because it is a toxic heavy metal (which is exactly the same reason why lead is toxic).
I thought DU was called as such because its no longer fissionable, not because it wasn't as radioactive. It is low enough that short-term exposure isn't going to hurt you, but long-term is less clear.
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Depleted uranium bullets aren't anything special. The metal is used because because it is denser than lead and thus make a heavier projectile. It is little different from tungsten, brass, or steel bullets in principal. It can be used in pistol or rifle bullets. The extra density would provide slightly better penetration of hard objects such as car doors, but the use of depleted uranium does not automatically make a bullet "anti-vehicle" by any means. The extra density also alters the ballistics of the weapon and reduces both accuracy and maximum effective range. The use of depleted uranium tends toward 30mm guns on aircraft and armored vehicles. 30mm depleted uranium is very effective against light armor. It is also used in anti-tank kinetic energy penetrators, usually alloyed with other metals to help it resist abrasion. In a high-velocity kinetic energy penetrator it has some interesting properties. Penetrating a tank's armor both shaves off small pieces of it at the tip, making the tip more pointed as it penetrates, and produces enough heat to ignite these shavings, potentially starting fires in the target vehicle.
Er... standard copper-jacketed 9x19mm rounds go through a car door with no trouble. Even .45ACP hollowpoints can sort of do it.
What other use does a DU bullet have? Other materials work quite well against body armor and flesh isn't dense enough to cause it to tumble or fragment. DU rounds are meant to be used on heavily armored targets so calling them AV rounds makes sense in this context.
Wouldn't reduced range and accuracy in this case be attributed to lower muzzle velocity? If thats the case you can just use a stronger powder in the cartridge.
Those 30mm rounds are quite effective against the rear or top armor of an MBT, but yeah, front armor is pretty much a no-go.
QUOTE ( @ Jun 19 2008, 05:16 PM)
The dragons cast a ritual that makes deplete uranium rounds ineffective.
Hah, no, seriously, there was once speculation that criminals could reclaim depleted uranium for its pyrophoric properties, using it to burn through safes and the like.
*chuckles*
Seriously? Anyone who could make that argument with a straight face has no idea how easy it is to make thermite.