US Patent 8171852 Expanding projectile

An improved projectile having a penetrator and a body is disclosed. The penetrator is secured to the body. Upon impacting a target, the pentrator travels into the body and deforms the body. The body optionally has one or more portions, such as slots in the body, to promote deformation of the body upon the penetrator impacting the target. The body optionally has a bore extending at least partially therethrough that permits attachment of the penetrator at a second end of the body opposite the first end.