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Chokes may be formed at the time of manufacture either as part of the barrel, by squeezing the end of the bore down over a mandrel, or by threading the barrel and screwing in an interchangeable choke tube. Chokes may also be formed even after a barrel is manufactured by increasing the diameter of the bore inside a barrel, creating what is ...
Choke: A tapered constriction of a shotgun barrel's bore at the muzzle end. Chokes are almost always used with modern hunting and target shotguns, to improve performance Chokes are almost always used with modern hunting and target shotguns, to improve performance
The DP-12 is a bullpup 12-gauge pump action double-barreled shotgun designed by Standard Manufacturing.It has two tube magazines, each of which feeds its own barrel.Each magazine tube can hold up to seven 2.75-inch (70 mm) 12-gauge shotshells or six 3-inch (76 mm) shotgun shells; [1] 16 (2 + 3 ⁄ 4") or 14 (3") in total with indicator windows.
Many choke types original and aftermarket exist for the SPAS-12. [2] A 44 mm grenade launcher was used by France for explosive grenades capable of a range of 150 meters. [3] A factory shot diverter that spreads shot vertically or horizontally was originally included with earlier model SPAS-12s. There are many known reproduction diverters. [4]
The original 870 models were offered with fixed chokes. In 1986 Remington introduced the new Remington "Rem Choke" system of screw-in chokes (also fitted to Remington model 1100 auto-loading shotguns at the same time). Initially, the Rem Chokes were offered only in 12 gauge in barrel lengths of 21, 26 and 28 in (530, 660 and 710 mm).
The metal strip immediately above the magazine tube is the ejector spring. The Winchester Model 1200 pump action shotgun employs a rotating bolt in a bolt carrier (slide) rather than the tilting breechblock used in the Model 12. [10] The Model 1200 was the second shotgun design to utilize a rotating bolt; the Armalite AR-17 being the first. [6]
Later models utilized a stainless steel receiver with hammer forged barrels. The shooter could determine which barrel to fire by means of a selector mounted on the tang. Early production models typically had fixed chokes but most Red Labels manufactured since the mid-1980s were tapped to accept screw in choke tubes for various purposes.
All Double Automatic shotguns are 12 gauge. Various configurations were available for choke, barrel length, and barrel type. The Double Automatic was offered in both aluminum and steel receiver configurations, [3] with the aluminum receivers featuring a variety of finish colors. [4]