rifling

IPA: rˈaɪfɫɪŋ

(military) The act or process of making the grooves in a rifled cannon or gun barrel.
(military) The system of grooves in a rifled gun barrel or cannon. Shunt rifling, rifling for cannon, in which one side of the groove is made deeper than the other, to facilitate loading with shot having projections which enter by the deeper part of the grooves.
(card games) The act or process of letting playing cards cascade down one at a time towards the table (or one's hand), controlling the speed and flow with one's thumb, which sits on the top edges of the cards.

Examples of "rifling" in Sentences

The rifling is scorched about a third of the way up the barrel.
The rifling is not cut “Sharp”, there’s rounded edges … to my eyes anyway.
When you get a tube smoking hot and keep it that way, its rifling is going to erode.
I still don’t know if “cut” rifling is better than “button”, or if a hammer-forged barrel is best.
The advantage claimed for cut rifling is that it creates no stresses within the barrel because nothing is bashed, pounded, or stretched.
This stupid practice of Reloaders believing to seat the bullet until it barely touches the rifling is the best way to blow your head off!
In theory it keeps your shots more consistent because the amount of force it takes to launch the bullet into the rifling is uniform from shot-to-shot.
Twenty-caliber cartridges are not a new idea but have not been a popular one because of the difficulty in rifling bores that small and making good bullets to fit them.