Abstract: The firearm and munitions kit is a cartridge and a barrel insert for a firearm adapted to fire munitions comprising a 223 round. The cartridge has an axis, a neck, a shoulder, a body, an extraction groove, and a slight frustoconical shape extending axially from the widest body diameter to the beginning of the shoulder. The barrel insert is appropriately chambered and provided for operability with the cartridge and round. A chamber of the barrel insert has an axis, a neck bore, a shoulder bore, and a body bore. The shoulder and the shoulder bore are formed at an angle of approximately 29°, ±0.5° with respect to the axis of the chamber. Upon firing a firearm equipped with the barrel insert and munitions of the present invention, the round is capable of reaching a minimum velocity of greater than 2,000 fps.

Abstract: A cartridge and a chamber for a firearm adapted to fire a bullet with an outside diameter of about 0.223″ (also known as a 223 round). The cartridge has an axis, a neck, a shoulder, a body, and an extraction groove. The chamber of the present invention is provided for the cartridge, described above. The chamber has an axis, a neck bore, a shoulder bore, and a body bore. The shoulder and the shoulder bore may be formed at an angle where the angle is about 28°, ±3° with respect to the axis of the cartridge or chamber. Upon firing a firearm equipped with the cartridge and chamber of the present invention, the bullet is capable of reaching a velocity of greater than about 2,500 fps.

Abstract: A device to restore the water level in a toilet bowl is disclosed wherein bleed water issued by the float actuated valve in a toilet tank reservoir is used to prime a syphon tube so that additional water from the toilet tank reservoir is shuttled down the overflow pipe to the toilet bowl to restore the toilet bowl water level during shortened partial flush operations of the toilet. The syphon tube consists of an inverted "U" shaped tube having one leg situated interiorly the overflow pipe and the other leg reaching down into the water of the toilet tank. The syphon tube operation is commenced by the bleed water injected into the base of the syphon tube through an initiator tube intersecting the syphon tube base so as to direct bleed water into the leg residing in the overflow pipe. An air vent opening situated in the initiator tube is effectively covered by water running through the initiator tube so no air is permitted to enter the syphon tube to disrupt the syphon operation.

Abstract: A water saving device for toilets providing both partial flush and full flush capability is disclosed wherein for the partial flush, air is controllably removed from the interior cavity of a flapper valve to render the flapper valve non-buoyant to return it to its sealing position on the valve seat and terminate flow of water out of the reservoir tank. Removal of air from the flapper valve cavity is rendered a function of the dropping water level in the reservoir tank by attachment of one end of flexible tubing to the flapper valve contained air cavity, the other end of the flexible tubing communicating with the interior cavity of a cylinder, the cylinder having one closed end and one open end, the open end residing downward in the water. As water drops in the toilet tank, it also drops in the cylinder and air is sucked from the flapper valve cavity.