No matter how carefully you relate to your hunting weapons, situations in which the barrel of the gun may undergo minor deformations are not excluded. What this can lead to is easy to guess. You can correct the curvature and remove small dents in the barrel of a hunting rifle yourself.
Correction of curvature and dents in the barrel of a hunting rifle, manufacture of a straightener, its dimensions and practical application.
To correct the curvature of the barrel, it is necessary to make a complex, but fully justifying rectifier. Such a barrel rectifier consists of a cylinder machined on a lathe, with a diameter 0.25 mm less than the diameter of the barrel bore. The material in this case can be steel, iron or brass..
The cylinder has a cone at one end, and is only rounded at the other. The surfaces of the cylinder and cone must be well polished. Inside the cylinder is drilled. Its internal cavity may be different in cross section.
Sizes of the rectifier of a trunk of a hunting rifle.
Cross section of a straightener for a hunting rifle.
A steel conical expander is sharpened along the drilled cavity. The cylinder has a section along the whole body, which is done with a knife. The cut is made for free expansion of the cylinder when boarding the expander.
The practical use of a home-made rectifier, curvature correction and the removal of dents in the barrel of a hunting rifle.
The action of the rectifier is as follows. The rectifier taper side is inserted into the channel from the side of the cartridge to the wrinkled place side a-a. Bringing the rectifier to a dent, lightly hit it with a ramrod-drummer.
Ready rectifier inside the deformed barrel.
When the rectifier is brought to the desired location, that is, a dent is in space a-a (rectifier), insert the cone-expander into the channel of the rectifier and supporting the latter on the other hand, start tapping the cone with the same ramrod, which makes the rectifier expand and press on the bent place of the barrel, so the dent straightens out.
The principle of the rectifier of the barrel of a hunting rifle while removing curvature and removing dents on the barrel.
To speed up the straightening process, it is necessary to have at hand a piece of sheet of red annealed copper, which should be applied externally to a crumpled place, lightly striking it with a small hammer or something else heavy. This contributes to the action of the rectifier..
After straightening the dent of the barrel, you only need to slightly strike the end of the expander protruding from the muzzle side, as the latter will pop out and the rectifier will freely exit the barrel.
Based on the materials of the book “Fishing tackle and do-it-yourself hunting equipment. Production and repair “.