초록 ▼

A sabot-type cartridge has a one-piece body of thermoplastic material and a standard body configuration, such as that of a .44 Magnum, with a propellant chamber, primer, and an integral sabot of full caliber. The sabot is generally hollow, cylindrical in configuration, with radially extending ribs,

A sabot-type cartridge has a one-piece body of thermoplastic material and a standard body configuration, such as that of a .44 Magnum, with a propellant chamber, primer, and an integral sabot of full caliber. The sabot is generally hollow, cylindrical in configuration, with radially extending ribs, separated by longitudinal grooves, the ribs supporting and centering a sub-caliber projectile, such as a .22 caliber. The annular mouth of the sabot is co-planar with the tip of the projectile to form a tapered funnel-like air inlet. A gas-actuated cutter means, in the form of a normally cupped metal member, is interposed between the projectile and the propellant chamber. There are sharp cutting edges on the multiple lobes of the member to slice the sabot free of the cartridge upon detonation of the propellant. As the sabot exits from the muzzle of the firearm, air pressure expands the sabot, in the manner of a spring collet, and releases the projectile. The invention is intended to, but not limited to, provide a family of sub-caliber cartridges, which may be loaded into, and fired from standard firearms currently manufactured by others.

대표청구항 ▼

In combination: a cartridge of plastic material having a main body of cylindrical configuration, said main body containing a propellant chamber and a primer pocket; a tubular sabot, of said plastic material, integral with said main body, and of full caliber; said sabot having a plurality of spaced,

In combination: a cartridge of plastic material having a main body of cylindrical configuration, said main body containing a propellant chamber and a primer pocket; a tubular sabot, of said plastic material, integral with said main body, and of full caliber; said sabot having a plurality of spaced, elongated, alternate ribs and grooves extending radially inwardly and outlining an axial bore of sub-caliber; a projectile of said sub-caliber sleeved within said sabot for discharge therewith upon detonation of said propellant in said chamber; and cutter means interposed between said projectile and said propellant in said chamber for expanding laterally to slice said sabot in one piece from said cartridge, under detonation gas pressure during ejection of said projectile.