Barrel Muzzle

Conduct Research

• Keeping firearms On Target
  tight, about 0.5 in. This would be considered exceptional accuracy for a factory rifle, especially if the rifle had not been tuned by a gunsmith. Adjustable muzzle brakes let pressure inside the barrel bleed away as the bullet leaves the barrel, thus reducing recoil felt by the shooter...
• Contact and Non-contact Profiles of Pistol Bore
  inches from the muzzle end of the barrel and rotated four times. Anomalies in the rifling caused by a faulty broach operation can be clearly seen. Contact and Non-contact Profiles of Pistol Bore. The pistol on the right was profiled. with both non-contact and contact. eddy current inspection techniques...
• Straighter shooter
  Automatic hone helps machine gunners hit their mark. A U.S. soldier at the ready with a Browning heavy-barrel M2HB .50-caliber machine gun. A machinist loads a .50-caliber barrel into the Sunnen HTB-2000 hone at Sabre Defence Industries, Nashville. The PLC-controlled machine can hone 10 to 12...
• A new machine gun for GI Joe
  of these moving assemblies, then compress the spring before the user feels a kick. General Dynamics and the Army are tight lipped on some of the new weapon's engineering specifics such as muzzle speed, barrel length, and the materials being used. Once the XM307 grenade launcher is deployed, the Army...
• Military Develops Electric Slingshot
  of the rails, where the armature is not traveling as fast. There's also a potential for high-temperature arcing when a pulse is first sent through the rails. This arc can spot weld the armature in place and lead to catastrophic failures. To keep the barrel or rails from melting, liquid nitrogen or water...
• Foom! Remotely piloted platform spews out grenades
  of propellant. One potential problem, though, is that if the propellant loads are of equal volume and bullets fire in sequence, the barrel length will effectively increase as firing progresses. The muzzle velocity of later bullets will be greater than the muzzle velocity of those fired earlier...
• Targeting the perfect bullet
  stock allows shoulder-firing it like a rifle, which also improves accuracy. And the weapon sports a 7-in. barrel, longer than those on most other handguns. Longer barrels translate into more accurate, consistent shooting. The gun is also lighter and easier to carry in a holster than other handguns...

Engineering Web Search: Barrel Muzzle