Abstract: An increased volume shotshell having a biaxially oriented plastic tubular body has an end closure disk heat sealed to the open end of the shotshell eliminating the conventional star crimp closure. The increases volume results from making available the space normally taken up by the internal folds of the crimp. The end closure on the open end of the shotshell tube is fused to the tubular body to seal the shot load without destroying the biaxial orientation of the open end of the tubular body.

Abstract: A semi-wadcutter bullet useful for target practice includes a lead core partially contained and locked in a metal cup-shaped jacket. The lead core has a cylindrical body, a frusto-conical nose formed integral with the body and extending forwardly therefrom, and a forward-facing annular ledge formed on the body and surrounding a base of the nose. The metal jacket has a cylindrical sidewall with an annular rim portion thereon. The core body is seated within the jacket sidewall with the core nose protruding thereabove. The rim portion of the jacket sidewall is bent into overlying relation with the ledge on the core body so as to lock the jacket on the core body and define a forwardly-facing sharp profile for making clean cut holes in the target paper.

Abstract: The invention provides a technique for vapor blasting the interior of regular production bullet jackets prior to lead seating. The controlled vapor blasting significantly increases the surface roughness of the bullet jacket interior. As a result, the formed bullet has greater adhesion between the bullet jacket and lead core.