I don't know much about modern munitions, but I do know that armor piercing rounds may have no charge in them at all. Generally, when a round pierces one side of a vehicle, it loses enough energy and is suitably deformed to prevent exit from the opposite wall. It does, however, bounce around quite a bit, which can be plenty of fun in a tank loaded with equipment, munitions, and soldiers.
I was under the impression that the most common techniquoe for creating armour-piercing munitions was to use shaped-charges. While depleted uranium has it's uses (being, as someone said, rather dense), mass alone will not get through everything. A shaped charge will get through more things more violently :) -- * * Mikolaj J. Habryn dichro@tartarus.uwa.edu.au * "I'm just another sniper on the information super-highway." PGP Public key available by finger * #include <standard-disclaimer.h>