Munition with multiple fragment layers

A munition comprising:

• a casing, wherein the casing is a penetrator casing having a nose that is thicker than an aft section of the casing that is aft of the nose;
• an explosive within the casing;
• preformed solid fragments surrounding the explosive, wherein the preformed fragments include inner fragments and outer fragments;
• wherein the outer fragments are radially outward from a center of the munition further than the inner fragments;
• wherein the inner fragments include fragments contained within the casing, between an inner surface of the casing and the outer surface of the casing;
• wherein the outer fragments are outside of the outer surface of the casing;
• wherein the penetrator casing has a monolithic nose without cutouts or openings therethrough;
• wherein the nose has a thickest portion that is at least twice the thickness of thickest portions of the aft section;
• wherein the outer fragments are between the casing and an enclosure that surrounds the casing;
• wherein the casing has a series of non-intersecting elongate reduced-thickness portions, thinner than portions of the casing that are adjacent the reduced-thickness portions;
• wherein the inner fragments are located in the reduced-thickness portions;
• wherein the elongate reduced-thickness portions are portions in which the casing has holes therein;
• and
• wherein the holes include a series of longitudinal holes therein, separated circumferentially around the penetrator casing.