adjective. Having a spiral on the interior of a gun bore to make a fired bullet spin in flight to improve range and accuracy.

verb. Simple past tense and past participle of rifle.

adjective. of a firearm; having rifling or internal spiral grooves inside the barrel

"Slugs have a long “barrel time” and are still traveling down the barrel as the gun recoils up and (in rifled guns) to the left."

smoothbore  unrifled  

rifle  

stifled  

rifles  

rifle