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Rust bluing is also used on shotgun barrels that are soldered to the rib between the barrels, as hot bluing solutions melt the solder during the bluing process. Large scale industrial hot bluing is often performed using a bluing furnace. This is an alternative method for creating the black oxide coating.
Internal ballistics (also interior ballistics), a subfield of ballistics, is the study of the propulsion of a projectile. In guns, internal ballistics covers the time from the propellant 's ignition until the projectile exits the gun barrel. [1] The study of internal ballistics is important to designers and users of firearms of all types, from ...
Dry pasta manufacturing line from 1930s. The first extruder was designed to manufacture sausages in the 1870s. [4] Dry pasta and breakfast cereals have been produced by extrusion since the 1930s, [2] and the method has been applied to tater tots (first extruded potato product: Ore-Ida in 1953) and pet food production since the 1950s (first extruded dog food: Purina Dog Chow in 1957, and first ...
Choke (firearms) A choke is a tapered constriction of a firearm barrel at its muzzle end. Chokes are most commonly seen on shotguns, but are also used on some rifles, pistols, or even airguns. [1] Notably, some .22 LR match rifles have a constricted bore diameter near the muzzle. [citation needed] Chokes are almost always used with modern ...
A sawed-off shotgun (also called a scattergun, sawn-off shotgun, short-barrelled shotgun, shorty, or boom stick) is a type of shotgun with a shorter gun barrel —typically under 18 inches (46 cm)—and often a pistol grip instead of a longer shoulder stock. Despite the colloquial term, barrels do not, strictly speaking, have to be shortened ...
Conventional eight groove rifling on the left, and octagonal polygonal rifling on the right. Polygonal rifling (/ p ə ˈ l ɪ ɡ ə n əl / pə-LIG-ə-nəl) is a type of gun barrel rifling where the traditional sharp-edged "lands and grooves" are replaced by less pronounced "hills and valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile.
brine. To soak a food item in salted water. broasting. A method of cooking chicken and other foods using a pressure fryer and condiments. browning. The process of partially cooking the surface of meat to help remove excessive fat and to give the meat a brown color crust and flavor through various browning reactions.
The problem of strengthening steel gun barrels using the same principle was tackled by French colonial artillery colonel Louis Frédéric Gustave Jacob, who suggested in 1907 to pressurize them hydraulically and coined the term "autofrettage". In 1913, Schneider-Creusot made a 14 cm L/50 naval gun by such a method [8] and applied for a patent. [9]