Abstract: A projectile for acceleration and delivery to a target having a jacket having rear surface, a cylindrical side surface, and a tapered rupturable front surface with a cavity between the surfaces, a core disposed within the cavity, and a mantel packing the core within the cavity, wherein the core is comprised of a denser material than material comprising the jacket, the front surface ruptures upon impact to a target, and the core is ejected through the ruptured front surface to penetrate the target.

Abstract: A wearable rescue sled constructed of a durable sheet material having a smooth, low-friction surface, an upper edge, a lower edge, and two side edges, with attachments along the upper edge for attaching the sled to a rear panel of a vest such as a military or law enforcement protective plate carrier vest. A releasable stowing retainer holds the sled in a stowed position with the approximately conformant to the rear panel of the vest. To effect a rescue of the sled's wearer, a rescuer releases the stowing retainer such that the sled hingably swings or slides down to depend from the attachments, forming a flexible low-friction seat for dragging a wearer of the vest. The rescuer may now drag the wearer in a semi-inclined seated position wherein the sled rides between the hips of the wearer and the ground surface to reduce friction and snag dangers.

Abstract: A bandage assembly for treating a patient's wound can consist of outer, inner, and adhesive layers. The outer layer may be constructed of a first material and have a window portion that is a semitransparent second material. The inner layer can be suspended across the window portion and be coated with at least one medication material. The adhesive layer may be disposed between and contact the outer layer as well as skin of a patient to apply continuous pressure on the inner layer.

Abstract: A form-factor for a palm pistol which reduces recoil movement and engages natural point of aim has a body for receiving and containing pistol action, a finger grip disposed on a top side of the body, a thumb grip disposed on a bottom side of the body, and a metacarpals grip disposed on a back of the body such that a bore axis of a barrel in the pistol action forms an angle with the metacarpals grip between 0° and 90°. This form-factor provides palm-forward, knuckles-up grip that aligns the barrel with the operator's forearm bones, thus distributing the rearward recoil force directly in-line with the forearm bones, thereby reducing recoil movement, and utilizing natural point of aim of the user.

Abstract: A firearms target system may be configured with at least a panel separated from a source with the panel consisting of at least one rotating mechanism, a target, and a shield. The one rotating mechanism can be configured to change the target relative to the shield in response to a prompt from a user.

Abstract: A suppressor of an audible sound, especially useful for an impulse sound such as the report of a firearm, has a bore formed through a body for co-axial alignment with an exhaust of the device which produces the sound, one or more chambers within the suppressor body, each chamber having a spiral volume, and receivers for sound producing matter into the outer ends of each chamber so as to allow the sound producing matter to be expanded into the spiral volumes to reduce audible sounds presented at an output of the bore.