MOST revolvers are not smoothbores, but have rifled barrels. A very few revolvers were made as SHOT pistols, and have smoothbores. These are rather rare collectors items, and require special registration with the BATFE as an "Any Other Weapon"- or AOW.
Smooth bores are bores or barrels in guns that do not contain rifling. Rifling is made up of lands and grooves that cause the bullet to turn within the barrel of the gun. This turning gives the bullet and gun its accuracy. A smooth bore gun is much less accurate than a rifled bore gun.
Smooth-bore refers to a firearm or cannon which does not have a rifled barrel (a rifled barrel is one with ridges that corkscrew down the barrel to impart a spin to the bullet)
Rifled slugs were designed for smooth bore barrels because they lack rifling. Sabot slugs are made for rifled bores but they can fire through smooth bores with loss of accuracy. I am not sure about rifled slugs in a rifled barrel because I think the bullets rifling can improperly connect with the bores rifling and you risk scratching the barrel.
Brad Bores is 6'.
Silvano Bores was born in 1855.
Silvano Bores died in 1903.
Francisco Bores was born in 1898.
Francisco Bores died in 1972.
Dylan Bores is 5' 9".
Jaime Bores is 169 cm.
Resting / doing nothing bores Jackie Chan.
Chris Bores is 5' 11 1/2".