Patent ID: 7997206

Claim:
A bullet shell for hunting guns with smooth bores and rifled chokes, comprising: a cylindrical bullet defined by end surfaces and a side surface and an envelope enclosing said bullet, said bullet being made with a groove on said side surface, said groove delimiting a nose portion and a heel portion of said bullet, said nose portion of said bullet being 1.5 to 3 times heavier and longer than said heel portion of said bullet, said bullet being made with a peripheral flat collar provided at said end surface of said nose portion of the bullet, a conical recess being formed within said nose portion from the side of said end surface of said nose portion inside said collar, said bullet being made of a solid material, said envelope being made of identical longitudinal halves having a cylindrical outer surface and an inner surface matching in contour with said side surface of said bullet, said envelope protruding beyond a plane of said bullet collar.