Predictably fragmenting projectiles having internally-arranged geometric features

A predictably fragmenting projectile having a leading edge, a base, and internally-arranged geometric features, the predictably fragmenting projectile comprising:

• a substantially solid core of a first material, the core comprising the base;
• a substantially smooth ogive, the ogive comprising the leading edge;
• at least three petals attached to the core and formed from the first material, each of the at least three petals comprising an outer surface that comprises a portion of the substantially smooth ogive and an inner surface;
• and
• a cavity comprising a first portion and a second portion, the first portion comprising a round void and the second portion comprising a polygonal void, wherein the first portion extends between a first level and a second level, wherein the second portion extends from the second level to the leading edge, and wherein the predictably fragmenting projectile is configured to fragment by the at least three petals pivoting outwardly away from the cavity and breaking off from the core in response to hydrodynamic pressure created by a second material entering the cavity.

A predictably fragmenting projectile having a leading edge, a base, and internally-arranged geometric features, the predictably fragmenting projectile comprising:

• a substantially solid core of a first material, the core comprising the base;
• a substantially smooth ogive, the ogive comprising the leading edge;
• a cavity comprising a first portion and a second portion, the first portion comprising a round void and the second portion comprising a polygonal void, wherein the first portion extends between a first level and a second level, and wherein the second portion extends from the second level to the leading edge;
• and
• at least five petals attached to the core and formed from the first material, each of the at least five petals comprising an outer surface that comprises a portion of the ogive and an inner surface that forms part of the cavity, wherein the predictably fragmenting projectile is configured to fragment by the at least five petals pivoting outwardly away from the cavity and breaking off of the core in response to hydrodynamic pressure created by a second material entering the cavity.