Patent ID: 6289620
Filing Date: 2001-09-18
Classification: F41A

Abstract:
A gunshot propelling smooth bore rifle barrel comprising at least one first portion of essentially cylindrical bore, associated with a cartridge chamber for gunshot, where said barrel exhibits at its free extremity a choke composed of at least one second essentially truncated conical portion associated with a third portion of the extremity of an essentially cylindrical shape and of a diameter essentially smaller than that of said first cylindrical portion, wherein said smooth bore rifle barrel comprises, in a position intermediate between said first cylindrical portion and said second truncated conical portion, at least one fourth essentially truncated conical portion associated on one side with said first cylindrical portion and on the other side with a fifth essentially cylindrical portion exhibiting a diameter essentially smaller than that of said first cylindrical portion and being further connected to said truncated conical portion, wherein said fourth truncated conical portion and said fifth cylindrical portion of said barrel exhibit an overall length exceeding 80 millimeters.