Patent ID: 11940254
Assignee: BARNES BULLETS, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 30:
31. A projectile comprising:
a jacket comprising a wall having a first end and a second end opposite the first end and defining a cavity; and
a core comprising tungsten powder, a lead-free metallic binder, and a lubricant or additional binding agent, pressed and sintered with the tungsten powder such that particles of the tungsten powder are bound together with the lead-free metallic binder to form the core and at least a portion of the lubricant or binding agent is removed;
wherein the core comprises a first end including a weakened area formed therein, the weakened area comprising a pattern of scoring or one or more cuts configured to form stress concentrations in the first end to promote fragmentation and separation of the core into a plurality of core sections.