A shotgun cartridge having only a single projectile, with oblique grooves on the projectile causing it to spin and thus increasing accuracy.

Firearms with spiral grooved barrels.

A rifled musket, rifle musket, or rifle-musket is a type of firearm made in the mid-19th century.

A rifled breech loader is an artillery piece which, unlike the smoothbore cannon and rifled muzzle loader which preceded it, has rifling in the barrel and is loaded from the breech at the rear of the gun.

A rifled muzzle loader is a type of large artillery piece invented in the mid-19th century.