[JohnC]

Incidently Depleted uranium is not used because its heavier although I'm sure that helps in penetration. It's because depleted uranium when under tremendous pressure........burns......probably turning into plasma (fourth state of matter). Plasma can't be contained by anything in contact with it....sooooo it goes right through....until it cools. The effect is the same as a shaped charge but with more "ass" behind it (it has mass, kinetic energy). When depleted uranium rounds strike a targewt notice the "sparks" fly off?...Thats molten steel....