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A muzzle brake or recoil compensator is a device connected to, or a feature integral (ported barrel) to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. [1] Barrels with an integral muzzle brake are often said to be ported.
A special muzzle brake was added that could absorb up to 40% of the recoil energy and an elastic butt stock with lamellar spring was non-rigidly attached to the receiver. The acoustics of the rifle were also improved by adding a sound suppressor.
An Austrian GDF-005 (FIAK85) gun system. Note the muzzle velocity measuring device on the muzzle of each gun. Development of the KD series cannon began around 1952 soon after Oerlikon calculated that 35 mm was the optimum calibre for an anti-aircraft gun. The KD series cannons were a design adapted from the post-war 20 mm KAA 204 Gk cannon.
Free recoil / Frecoil is a vernacular term or jargon for recoil energy of a firearm not supported from behind. Free recoil denotes the translational kinetic energy ( E t ) imparted to the shooter of a small arm when discharged and is expressed in joules (J), or foot-pound force (ft·lb f ) for non-SI units of measure.
While the barrel is standard with a muzzle brake, it can be removed to allow access to a threaded muzzle for the attachment of a suppressor. The rifle is guaranteed to have a standard 0.5 moa (0.15 mrad ) accuracy and uses a 1-6 lbs (4-27 N) adjustable match trigger .
For a typical .375 CheyTac chambered gun, shooting 24.30 gram (375 gr) Lost River Ballistic Technologies bullets (claimed G1 BC = 1.02) at 930 m/s (3050 ft/s) muzzle velocity, the supersonic range would be 2,230 m (2,440 yd) under International Standard Atmosphere sea level conditions (air density ρ = 1.225 kg/m 3).
The felt recoil of a normal handgun in .38 Super is similar to the .45 ACP, but the higher pressure in the .38 Super provides more gas pressure for muzzle brakes. The .38 Super caliber became popular in the early 1980s, and has continued to be popular in the open division after its introduction in the 1993 season.
The M198 is towed by a 5-short-ton (4.5 t; 4.5-long-ton) truck that is used to carry the nine person crew with supplies and ammunition; it is transported tail first. The gun tube can be rotated over the howitzer's trail legs to reduce its length, though this requires removal of the muzzle brake, or left in the firing position for faster ...