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Advantages claimed for a "jug choke" include improved patterns, reduction of recoil, and an increase of choke in a shotgun that does not have replaceable choke tubes. When a "jug choke" is implemented in an existing choked barrel, the bore inside the bored-out section of barrel effectively becomes "overbored", and this also typically lessens ...
However, the flow pattern in the diverging section does change as you lower the back pressure further. [13] As p b is lowered below that needed to just choke the flow, a region of supersonic flow forms just downstream of the throat. Unlike in subsonic flow, the supersonic flow accelerates as it moves away from the throat.
A constriction in the end of the barrel known as the choke is used to tailor the pattern for different purposes. Chokes may either be formed as part of the barrel at the time of manufacture, by squeezing the end of the bore down over a mandrel, or by threading the barrel and screwing in an interchangeable choke tube. The choke typically ...
Most modern sporting shotguns have interchangeable choke tubes to let the shooter change the spread of shot that comes out of the gun. In some cases, it is not practical to do this; the gun might have a fixed choke, or a shooter firing at receding targets may want to fire a wide pattern immediately followed by a narrower pattern out of a single ...
The gap between the flange faces has been exaggerated by a factor of four to make it clearly visible. The choke flange can also be mated with a plain cover flange and still form a pressure seal. A choke connection is formed by mating one choke flange and one cover (or gasket/cover) flange. The central region of the choke flange face is very ...
The UTAS UTS-15 is a 12 gauge pump-action shotgun with two 7-round magazine tubes that can feed in an alternating or selecting pattern. The UTS-15 has a 28.3" overall length with an 18.5" barrel, chambered for 2½", 2¾", and 3" magnum ammunition.
In 1971, it was offered with the option of the Winchoke screw in choke tube system, supplied with a set of three tubes in improved cylinder (IC), modified (M) and full (F) choke. [15] [f] In 1973, 16-gauge was dropped from the production line. [15] With introduction of the Model 1300, a 3-inch (76 mm) chamber was made standard. [20]
A Brenneke-style shotgun slug. A shotgun slug is a heavy projectile (a slug) made of lead, copper, or other material and fired from a shotgun.Slugs are designed for hunting large game, and other uses, particularly in areas near human population where their short range and slow speed helps increase safety margin.