: a system of spiral grooves in the surface of the bore of a gun causing a projectile when fired to rotate about its longer axis
Example Sentences
Recent Examples on the WebThe Creedmoor gets its longrange performance reputation from a combination of 140- to 143-grain, high B.C. bullets and fast twist rifling, usually 1:8 or even 1:7.5. Ron Spomer, Outdoor Life, 10 Sep. 2020 The baseline model has a 16-inch barrel with six-groove rifling and a 1:9 rate of twist. Mike Dickerson, Field & Stream, 19 Aug. 2020 The Compass has a three-lug bolt, a three-position safety, a user adjustable trigger, and 5R rifling is standard. Richard Mann, Outdoor Life, 17 Sep. 2019 The rifling at the muzzle of my match rifle shows hardly any wear at all. David E. Petzal, Field & Stream, 20 Feb. 2020 Extending the forcing cone gives the slug a better transition into the rifling, Klotz says. Curtis Niedermier, Outdoor Life, 18 Nov. 2019 There are small grooves — called rifling — twisting in a spiral down the barrels. Leah Sottile, Longreads, 6 Feb. 2018 In real guns, the rifling propels the bullet out of the chamber in a spiraling motion. Leah Sottile, Longreads, 6 Feb. 2018 See More