Rifling a gun barrel causes the bullet to spin when it comes out. This makes the bullet fly more straight and greatly improves accuracy. Much like a spinning football spirals.
Typically the crown of a gun is on the muzzle end of a rifle. It is the recessed area at the very end of the barrel. Poor crown cutting can be the cause of many accuracy problems.
Oxidation of the steel of a gun barrel.
While there are several techniques used by gun makers, the original method was to start with a smooth bore barrel. A long screw with a single cutting tooth was inserted in the barrel, and pushed down, turning as it went. This would scratch a spiral line on the inside of the barrel. Raise the cutter a notch, repeat. Eventually, the scratch becomes a groove cut into the metal. Rotate the screw, repeat for the next groove. Some barrels had 2 grooves, some 4,5,6, etc.
Flower in the Gun Barrel was created in 2008.
The gun barrel is the metal part that the bullet comes out of.
A barrel is part of a gun
Barrel of a Gun - Guster song - was created in 1998.
You will have to replace the barrel
The barrel is usually above the centerline of the gun. When fired, recoil pushes straight back from the line of the barrel, but that is offset above the centerline, and causes the gun to pivot.
Sorry, but we need more information on the term "round barrel gun".
Grooves cut into the inside of a gun barrel for the purpose of spinning the bullet when fired.