SU334468A1 - - Google Patents

Description

CUTSHINE SPORTS HUNTING GUN

To ensure bullet firing from existing sporting and hunting smooth-bore weapons, various designs of bullets are used, equipped with special leading devices and a form, in order to ensure their stability on the trajectory. However, these measures are not effective enough and most often the weapon has an additional rifled barrel or interchangeable external barrels. All this complicates the design of the gun and its operation.

In the proposed rifled barrel, the bullet twist and the normal shotgun yield are ensured by the cutting shape.

For this, cutting the constant steepness, which serves to drive the bullet and give it the necessary twist, occupies the initial part of the bore and then smoothly passes into straight grooves in the muzzle, which end in a smooth inlet section in front of the muzzle trimmer.

FIG. 1 shows the trunk, the lobar cut; in fig. 2 shows a section A-A in FIG. one; in fig. 3 is a section. By BB in FIG. one; in fig. 4 shows a section along BB in FIG. one; in fig. 5 - connection of the barrel with the plastic body of the gun and the bolt when locking.

The trunk consists of a section 4 of a constant steepness, 20-25 calibres long, a transition section 5 where the steepness gradually decreases to zero (), a section 5 of straight grooves of 4-5 calibres, and a smooth section 7. At section 6 the diameter of the trunk 0.5-1.0 mm more than in section 4, so that the pool, having received a twist in section 4, does not lose it, passage 5, 6, 7. Passage lugs 8 and projections I and in the breech box itself there is a bore 10 for diving the gate larvae 11.

Subject invention

Claims (2)

1. A rifled barrel of a sporting and hunting rifle containing a screw-in controller of accuracy of bo when shot with a shot and having a cut of variable steepness, characterized in that, in order to ensure high ballistic characteristics of both shot and shot, there is a main section a channel with a constant cutting slope length of 20-30 calibers in the muzzle part smoothly goes over a length of 2-3 calibers to a section with straight grooves 4-5 calibres long with a channel diameter of 0.5-1.0 l {m larger than diameter in the main section is constant the steepness of the second, and then to smooth-wall area, which is the entrance to the controller of accuracy. 2. The barrel according to claim 1, characterized in that, in order to eliminate the need for a receiver box and reduce loads on the body of a gun made of plastic, it has -,five r  BUT a breech with a bore made in one piece with it for the gate larvae to enter, and lugs that interact with the latter’s unors, and on the surface ring-shaped protrusions for bonding to the body during the casting of the latter. AT 3 2 W 8 L /./../ ../