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As far back as 1787 a Frenchman by the name of M. Magne de Marolles gave an account of choke-boring, though he argued against it. [3]Some sources state that the first pioneer was a Czech named Dominik Brandejs, who made shotguns with a choke in order to reduce the dispersion of shots, but his design was not popular in the 1820s.
At the muzzle end of the barrel, the choke can constrict the bore even further, so measuring the bore diameter of a shotgun is not a simple process, as it must be done away from either end. Shotgun bores are commonly "overbored" or "backbored", meaning that most of the bore (from the forcing cone to the choke) is slightly larger than the value ...
The barrel of a shotgun is choked to deliver a wider or narrower scattering, depending on the expected use. Shooting at close range indicates a cylinder bore barrel to deliver a wide grouping, while for hunting at longer distances such as 50 yards or meters, a choke is recommended to constrict the scattering for a tighter pattern. [3]
Firing shotgun shell of the correct gauge or bore, but in a chamber length that is too short (for example a 70 mm shell in 65 mm chamber) While the table below lists most unsafe combinations known by SAAMI, the list is not exhaustive of all dangerous combinations due to the large number of cartridges. [1]
For older shotguns having only one fixed choke, intended primarily for equally likely use against rabbits, squirrels, quail, doves, and pheasant, an often-chosen choke is the improved cylinder, in a 28 inches (710 mm) barrel, making the shotgun suitable for use as a general all-round hunting shotgun, without having excess weight.
Sawed-off shotgun/Sawn off shotgun/Short-barreled shotgun (SBS): A type of shotgun with a shorter gun barrel and often a shorter or deleted stock. Selective fire : A firearm that fires semi–automatically and at least one automatic mode by means of a selector depending on the weapon's design.
William Rochester Pape (1831–1923) was an English gunsmith who is often credited with inventing and patenting the choke boring system for shotguns, [1] [2] [3] which W. W. Greener went on to develop. He also patented several extractors, and invented draught excluders for railway carriage doors and windows. [4]
The barrel is chrome lined and features screw-in choke tubes. [4] [1] Unlike its predecessor, the SPAS-15 is fed by a detachable box magazine. [1] The gun features either a fixed black wooden stock or a side folding metal stock. Both had the same pistol grip safety. Additionally, a semi-auto only variant called SPAS-16 was manufactured in small ...