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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.
Illustration of forces in muzzle rise. Projectile and propellant gases act on barrel along barrel centerline A. Forces are resisted by shooter contact with gun at grips and stock B. Height difference between barrel centerline and average point of contact is height C. Forces A and B operating over moment arm / height C create torque or moment D, which rotates the firearm's muzzle up as ...
The NMLRA also sponsors Muzzle Blasts Postal Match. A target is included in an issue of the NMLRA monthly publication "Muzzle Blasts" and the participant must shoot the target and mail it into the NMLRA along with a $2.00 entry fee. The winners are posted on the NMLRA website and the proceeds go towards the Association's Youth Program.
For example, if the muzzle velocity is reduced from 2,700 ft/s (820 m/s) (common for the .308 Winchester, for example) to a subsonic 950 ft/s (290 m/s), the muzzle energy is reduced by a factor of 8. Military marksmen and police units may use subsonic ammunition in suppressed rifles when minimal noise is more important than range and energy.
The distinctive quick detachable muzzle brake features a large expansion chamber, two symmetrical vertical cuts at the forward end of the brake and three non-symmetrical positioned vent holes to counteract muzzle rise and climb as well as lateral shift to the right and features a crown-shaped glass breaker at the end. A flat plate near the end ...
A muzzle booster or recoil booster is a device fixed to the muzzle of a firearm, intended to harness the energy of the escaping propellant to augment the force of recoil on portions of the firearm. In spite of its name, a muzzle booster does not increase muzzle force or velocity but instead is usually used to improve the reliability and/or rate ...
The muzzle-loading rifle was introduced into service in ships of the Royal Navy, after experimentation with alternative armament systems, after the failure of the Armstrong 100-pounder breech-loaders installed in 1860. Until the middle of the 19th century Royal Navy warships had been armed with progressively larger smoothbore muzzle-loading cannon.
The M252 81 mm medium weight mortar is a British-designed smooth bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to light infantry, air assault, and airborne units across the entire front of a battalion zone of influence.