Smooth-bore is like a tube, think of it as a straight pipe. Rifling is a pipe with grooves swirling around on the inside of the pipe. This makes the bullet spin as it travels down and leaves the barrel. This spinning makes the bullet fly straighter than a bullet fired from a smooth-boar barrel.
The 67 has a rifled bore, the 67 smoothbore does not.
A smoothbore is cheaper and works just as well when using regular shot. A rifled shotgun barrel only helps if you are going to be firing slugs, but if you are it improves performance considerably, giving the slug near-rifle accuracy. If you can afford it and plan to be using slugs the rifled barrel can be well worth it and gives you much more versitility.
Smoothbore
12 g sabot slugs. Rifled slugs are for smoothbore barrels.
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A rifle is a long gun with a rifled barrel designed for accuracy at long distances, while a shotgun is a long gun with a smoothbore barrel designed for shooting multiple projectiles at close range.
Shooting rifled slugs is the ONLY way to shoot thru a smoothbore for deer. If you shoot sabot slugs thru a smoothbore, it will not spin and therefore not be accurate. For accuracy, the slug must spin out of the barrel. Either shoot a rifled slug thru a smooth barrel, or shoot a saboted slug thru a rifled barrel.
A 90 mm rifled cannon because the inside is grooved.
Yes. Exercise caution. Do not attempt with a full choke.
Muzzle loading flintlocks. Most were smoothbore, a few were rifled.
Yes. Rifled slugs are intended to be fired through a smoothbore barrel. Sabot slugs are intended to be fired through rifled barrels.
probably not, historicly shotguns are smoothbore if you shoot a slug, THAT would be rifled.