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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 ...
A supplemental chamber or cartridge adapter is typically used for a shorter cartridge of reduced diameter. [1] A cartridge conversion sleeve may include a short barrel of reduced bore diameter. Shotgun conversion sleeves may be called subgauge inserts , subgauge tubes , or gauge reducers .
More expensive extension tubes contain electrical contacts allowing the user to use autofocus and electronically control the aperture of the attached lens. An advantage to the non-electrical tubes is their lower price. Other items like lens adapters may unintentionally have an effect similar to an extension tube.
This choke features muzzle spikes and gas ports for breaching. Also considered a choked cylinder it can be used for firing slugs as well as buck shot. [6] 7.5" Barrel Extension: machined from 4140 ordnance grade steel with a matte black oxide finish. This attachment is threaded to screw into the UTS-15 barrel (like the Tactical Choke Tube). [7]
The general use Ithaca Mag-10 was equipped with a 32-inch vent rib barrel with auto loading capabilities. Due to its large frame and extended barrel length, it weighs in at 11¼ pounds. After the U.S. Fish and Wildlife Service banned lead shot for waterfowl hunting in 1991, hunters were forced to use steel shot. The Ithaca Mag-10 was a platform ...
In electronics, a choke is an inductor used to block higher-frequency alternating currents (AC) while passing direct current (DC) and lower-frequency ACs in a circuit. A choke usually consists of a coil of insulated wire often wound on a magnetic core, although some consist of a doughnut-shaped ferrite bead strung on a wire.
The rear naked choke (RNC), also known as "hadaka jime" in Judo and "lion killer choke (Mata Leão)" in BJJ, is a chokehold in martial arts applied from an opponent's back. The word naked in this context suggests that, unlike other strangulation techniques found in jiujitsu/judo, this hold does not require the use of a keikogi ("gi") or ...
If the fluid is a liquid, a different type of limiting condition (also known as choked flow) occurs when the venturi effect acting on the liquid flow through the restriction causes a decrease of the liquid pressure beyond the restriction to below that of the liquid's vapor pressure at the prevailing liquid temperature.