Depleted Uranium Round

Depleted uranium rounds (DU) are high caliber bullets where the penetrator is formed from uranium with a lower content of fissile U-235 isotope.

Characteristics
As depleted uranium is 1.67 times denser than lead, slightly below tungsten and gold, and just 16% lower than the density of the rare osmium or iridium (the densest substances on Earth in normal pressures), it has been adopted by the United States military as an armor-penetrating round. At the same weight, a DU projectile is smaller than an equivalent lead projectile, resulting in better aerodynamic properties and improved penetration due to a greater concentration of penetrative power at a given point.

Examples

 * Jake sold some a few years before 2161
 * West Tek developed a prototype railgun that utilized the ammunition in 2044, the project was cancelled, and the gun went on to be displayed at various locales.
 * .50 caliber rounds are available with depleted uranium penetrators for use as an extremely powerful armor-piercing projectile in some parts of the Belt.

Appearances
Depleted uranium rounds are mentioned only in Fallout, Fallout 3, and Fallout Tactics.