METHOD FOR MANUFACTURING BARREL OF A SHORT-BARRELED SMALL ARMS INTENDED FOR FIRING A BULLET MADE WHOLLY OR PARTIALLY FROM ELASTIC MATERIAL Russian patent published in 2023 - IPC B23P15/00 F41A21/16 

FIELD: firearms manufacturing.

SUBSTANCE: invention is related to methods for manufacturing a barrel of a short-barrelled small arms intended for firing a bullet made entirely or partially of an elastic material, including rubber, mainly by machining with cutting tools. In production of the barrel of a short-barrelled small arms intended for firing a bullet made entirely or partially of an elastic material, including rubber, a chamber cavity is made in the blank of the barrel of an arbitrary shape by drilling, boring, milling, turning using a milling-drilling rotating or turning non-rotating tool driven from the breech side of the barrel. The barrel after all stages of processing consists of one part. The cavity forming part of the bore, limited by the chamber and the muzzle, is made by making two non-through and non-crossing holes, one with the tool fed from the breech side of the barrel, and the other with the tool fed from the side of the muzzle of the barrel, as well as by manufacturing two more holes which are non-through, but intersecting with each other eccentrically located relative to each other, one - driving the tool from the side of the breech, and the other - driving the tool from the side of the muzzle of the barrel. All of these holes in the cavity forming part of the bore, limited by the chamber and the muzzle, are made by drilling, boring, milling, or turning using a milling-drilling rotating or turning non-rotating tool. The sequence of manufacturing all the above holes and the cavities formed by them, including the cavity of the chamber, is chosen in any order.

EFFECT: due to the fact that the barrel is made as one piece, the barrel structure is strengthened, which has a positive effect on the operational characteristics of the finished product during normal use, i.e. when firing a cartridge with a bullet made entirely or partially of an elastic material, including rubber. This provides a significant reduction in muzzle energy during abnormal use, i.e. when using a cartridge with a metal bullet.

14 cl, 6 dwg