Armor plate penetrator

In an armor piercing round having a case wall including propellant therewithin and a projectile disposed at a forward portion of said case wall, said projectile including a penetrator or core therewithin, said projectile being carried by a nondiscarding sabot, said sabot having a windshield associated therewith, and means for igniting said propellant within said case for propelling said projectile forwardly with said sabot and windshield form said case at a high rotational speed, in combination therewith, the improvement comprising said penetrator having a non-circular transverse cross-section throughout its length and a predetermined center of gravity and weight, said non-discarding sabot having an internal configuration mating generally with the exterior configuration of said non-circular transverse cross-section penetrator, and said non-circular transverse cross-section penetrator having an axis and comprising a plurality of plates, each of said plates extending from said axis and being equal to each other and spaced from each other by an equal number of degrees.