초록 ▼

A pattern control system for a shotgun and the method of making the system in which one or more choke attachments are detachably mounted on the muzzle end of the shotgun barrel and the barrel bore and one or more progressively reduced choke constrictions, either in the bore and the choke attachments

A pattern control system for a shotgun and the method of making the system in which one or more choke attachments are detachably mounted on the muzzle end of the shotgun barrel and the barrel bore and one or more progressively reduced choke constrictions, either in the bore and the choke attachments or in the attachments alone, are formed at the same time in order to eliminate tolerance buildup between the choke attachment bore constrictions and the barrel bore. By adding or deleting choke attachments, it is possible to achieve the choke constriction which will provide the desired pattern pellet density at the selected distance from the muzzle of the shotgun.

대표청구항 ▼

A pattern control means for a shotgun having a barrel with a bore therein through which a shot charge is explosively propelled, said pattern control means comprising at least two separate choke means that are progressively reduced in the direction of shot movement and through which the shot charge i

A pattern control means for a shotgun having a barrel with a bore therein through which a shot charge is explosively propelled, said pattern control means comprising at least two separate choke means that are progressively reduced in the direction of shot movement and through which the shot charge is constricted to control the pattern pellet density at a predetermined distance from the muzzle of the shotgun barrel, at least one of the choke means comprising a choke tube attachment with inner wall surfaces formed at the same time as the shotgun bore, means detachably mounting said attachment to the end of said barrel, said attachment wall surfaces including a bore with a rear cylindrical section adjacent the end of the barrel whose diameter is essentially the same as the exit bore of the barrel muzzle, an intermediate section which tapers inwardly to form a smaller diameter bore, and a forward cylindrical section, having a diameter essentially the same as the smaller diameter bore of the intermediate section.