This new round uses depleted uranium slugs in a sabboted round with a special screw on muzzle accellerator device. Rounds are actually 1/4 the size of a normal projectile, but traveling at ultra-high speeds often nearly rivaling that of a rail gun. They are not often made in any size but that of artillery or tank rounds.
Scientifically advanced anti-armor rounds that have a new cupped appearance - made in sizes from machinegun & autocannon size up to artillery & tank sized. The projectile travels at roughly 1/2 of the normal speed, & range is halved, but damage is tripled - explosive force is funneled directly in a small area.