Abstract: A bullet (10) including: body (11) with a base (12), a distal end (13) with a mouth (14), and an interior cavity (34) recessed into the body from the mouth; an insert (40) configured to be held in the interior cavity and to protrude from the mouth; and at least one skive (50) formed in the distal end and axially overlapping the interior cavity relative to a center axis (16) of the body. The interior cavity is configured to permit limited axial recession of the insert into the interior cavity when the insert impacts a hard target. The limited axial recession opens a pocket (80) between the insert and the mouth.

Abstract: A bullet (10) including: body (11) with a base (12), a distal end (13) with a mouth (14), and an interior cavity (34) recessed into the body from the mouth; an insert (40) configured to be held in the interior cavity and to protrude from the mouth; and at least one skive (50) formed in the distal end and axially overlapping the interior cavity relative to a center axis (16) of the body. The interior cavity is configured to permit limited axial recession of the insert into the interior cavity when the insert impacts a hard target. The limited axial recession opens a pocket (80) between the insert and the mouth.

Abstract: A building escape railing system for mounting on a building and facilitating the rescue of persons and the access of emergency personnel and supplies to the building is disclosed. The building escape railing system includes at least one platform tracking for engaging the building and a vehicle engaging the at least one track for vertically transversing the at least one track. In one embodiment, the vehicle is a lift unit. In another embodiment, the vehicle is a rescue platform. In still another embodiment, the vehicle is a remote fire hose platform carrying a fire hose. In yet another embodiment, the vehicle is a brake mechanism that facilitates the gravity-assisted escape of persons from the building.