rifling

Mounted to the front of this was a 24-inch chromemoly barrel with a 1 turn in 10 inches right hand rifling twist.

In addition to having a diameter that more closely matches that of the .22 Long Rifle case, its shorter length causes the bullet of a chambered round to be engaged by the rifling. That along with the higher quality of match-grade barrels improves accuracy far beyond what is commonly achieved with a barrel of lesser quality having a sporting chamber.

It has a 26-inch fluted barrel with 5R rifling, a removable muzzle brake, a Performance Center adjustable trigger, fully adjustable stock, and a 20-m.o.a.

Our .270 used a standard 1:10-inch twist, and all AWR barrels feature 5R rifling, which was designed by barrel-making legend Barrett "Boots" Obermeyer with the goal of inducing less deformation on bullets as they pass through the bore.

The Metford name refers to William Ellis Metford, an English engineer who perfected the .303 jacketed bullet and the barrel rifling for it.

Pac-Nor barrels have buttoned rifling and a reputation for excellent accuracy.

Back to the shiny bore--the rifling should be quite visible.

Q I know in the past you have stated that it is rare that any-one ever wears out the rifling in a modern .22 rifle barrel.

Lewis rifled his guns with a gain twist, and the rifling in this piece appears to be designed for a patched picket bullet rather than a round-ball.

Rifling was tried from the early days of gunnery, but rifling requires a greater force to push the bullet through the muzzle, which means that guns have to be better constructed and are harder to reload.

We're talking about rifled slug barrels boasting rifling like the conventional rifle.

Because gun barrels have been rifled for so long in so many different regions of the world, the device that is used to guide and support the hook cutter during a rifling operation is known by several different names.