US 4,434,718 A · Sabot and projectile

Abstract

A discarding sabot projectile for shotgun of unique construction whereby the separation of the projectile and sabot is enhanced by opposing air pressure and the unique construction of the sabot. The sabot as utilized herein comprises a plastic body firmly encompassing, but not completely encapsulating a subcaliber projectile. The plastic body includes a plurality of longitudinally extending slots forming symmetrical segments and further, segment having longitudinally extending grooves for reducing friction between the barrel bore and the sabot. The segments are further defined at the other end thereof by longitudinal tapered edges. The sabot, upon exiting the launching device begins to separate from the enclosed projectile beginning at the uppermost front end of the sabot as a result of air pressure flowing in the opposite direction of the sabot. The longitudinal segment radially separates and will spread outwardly and as a result, the segments act as an air brake reducing the forward speed of the speed of the sabot. This results in the separation of the sabot and projectile. The separation is such that it does not interfere with the trajectory and the velocity of the subcaliber projectile, hence, resulting in a longer and more accurate trajectory.

Claims2

Dependent claims

A self-separating sabot for use in combination with a projectile for firing through a shotgun bore, comprising:

(a) An elongated cylindrical sabot body having a base portion at the aft end thereof and a plurality of longitudinally extending segments open at the forward end thereof, said sabot body having a metallic disc positioned on the inside surface of said base defined by the closed end of said segments, and wherein said base portion is thicker than said longitudinally extending segments, and wherein said longitudinally extending segments have inscribed thereon, a plurality of longitudinally extending grooves for reducing friction between said sabot and said shotgun bore:
and
(b) a projectile adapted for insertion in said sabot body, said projectile having a plurality of eccentrically placed fins at the aft end thereof, said fins being supported by said metallic disc, said projectile being further defined in that the greater portion of its weight is positioned in the forward third of said projectile;
and
(c) means for propelling said sabot body and projectile through and out said barrel;
and
(d) said longitudinally segmented ends being responsive to air forces such that said segments open in a radially outwardly direction thereby separating from said projectile.

4 more elements

Dependencies are inferred from the claim text.

Sabot and projectile

Life of this patent

Sabot and projectile

Life of this patent

Abstract

Claims2