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The Collaborative International Dictionary
Rifling

Rifling \Ri"fling\, n.

  1. The act or process of making the grooves in a rifled cannon or gun barrel.

  2. 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.

Rifling

Rifle \Ri"fle\, v. t. [imp. & p. p. Rifled; p. pr. & vb. n. Rifling.] [F. rifler to rifle, sweep away; of uncertain origin. CF. Raff.]

  1. To seize and bear away by force; to snatch away; to carry off.

    Till time shall rifle every youthful grace.
    --Pope.

  2. To strip; to rob; to pillage.
    --Piers Plowman.

    Stand, sir, and throw us that you have about ye: If not, we'll make you sit and rifle you.
    --Shak.

  3. To raffle. [Obs.]
    --J. Webster.

Wiktionary
rifling

n. 1 The act or process of making the grooves in a rifled cannon or gun barrel. 2 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. vb. (present participle of rifle English)

WordNet
rifling

n. the cutting of spiral grooves on the inside of the barrel of a firearm [syn: grooving]

Wikipedia
Rifling

Rifling consists of helical grooves in the barrel of a gun or firearm, which imparts a spin to a projectile around its long axis. This spin serves to gyroscopically stabilize the projectile, improving its aerodynamic stability and accuracy.

Rifling is often described by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), or "1 turn in 254 mm" (1:254 mm). A shorter distance indicates a "faster" twist, meaning that for a given velocity the projectile will be rotating at a higher spin rate.

The combination of length, weight and shape of a projectile determines the twist rate needed to stabilize it – barrels intended for short, large-diameter projectiles like spherical lead balls require a very low twist rate, such as 1 turn in 48 inches (122 cm). Barrels intended for long, small-diameter bullets, such as the ultra-low-drag, 80- grain 0.223 inch bullets (5.2 g, 5.56 mm), use twist rates of 1 turn in 8 inches (20 cm) or faster.

In some cases, rifling will have twist rates that increase down the length of the barrel, called a gain twist or progressive twist; a twist rate that decreases from breech to muzzle is undesirable, as it cannot reliably stabilize the bullet as it travels down the bore. Extremely long projectiles such as flechettes may require impractically high twist rates; these projectiles must be inherently stable, and are often fired from a smoothbore barrel.

Usage examples of "rifling".

The governor continued to stare out at the parking lot, where a man was flitting from car to car testing doors, and then, as Bookman continued, the governor saw the man open a door and lean in quickly, rifling through a glove compartment, and the governor never said a word to interrupt the state engineer, nor moved a muscle nor an eyelash while the car was ransacked.

In rifling the closet of the ladie, they found a wafer of sacramental bread, having the divels name stamped thereon in steed of JESUS Christ, and a pipe of ointment, wherewith she greased a staffe, upon whish she ambled and gallopped through thicke and thin when and in what manner she listed.

It was a stalemate between The Shadow and half a dozen gangsters, while Marty Lunk and a pair of aids were rifling the strongroom where Hampton Uhler and his servants lay dead!

She remembered the roaring mob of the Palio rifling this amphitheatre of Renaissance palazzos, the rainbow parade of the contrade, the wild horse race: all stopped, all gone!

The favourite weapon of the peasantry, on account of its low price and other good qualities, is the old Enfield rifle bought out of the Government stores, shortened and rebored to get rid of the rifling.

Bellis watched Shekel teaching himself to read, rifling through the sheets on which he had written difficult words, scribbling additions to them as he said their sounds, copying words from the papers around him, from files, from the list of names that Tintinnabulum had left her.

Having just sat down himself after rifling through her rolodex, Agent Turney smiled back at her.

Before she could catch her breath, Anne was already rifling through the laciest, scantiest, sheerest panties the clerk could show her.

At the time Spikeman was rifling his house, and injuriously treating its inmates, the Knight, unsuspicious of harm, was lying in the wigwam of Sassacus, which was distant but a mile or two from his own residence.

Krak and his men had all been issued brand-new flintlocks with longer barrels and a tighter rifling twist, and they had now trained for months alongside the Thuringian Rifles.

Some began rifling the limbers where gunners stored food and valuables.

The Negro and Ratface drained theirs straight down then wandered about the room rifling through papers and looking into drawers and cupboards while the Captain talked.

She leaned forward to peer into the pages of HOW TO MARRY A MARQUIS, through which he was now rifling, looking for the aforementioned edict.

Pete's cannon are, however, not only much heavier than usual breechloaders, they are safer to fire, lighter in weight than any other gun of their bore, have a greater range than anything anyone here has ever seen, and have unbelievable penetrating power, thanks of course to pointed, cylindrical shells and rifling.

The rifling of the caches effected a change in the fortunes and deportment of the whole party.