anything can be done given enough money and time. Some older H&R shotguns in small gauges have enough steel surrounding the bore to be rifled to fire slugs. However, the equipment is specialized and expensive. It would be far cheaper to buy a rifle.
Needs to be checked out by a good gunsmith
Yes it could be done, but you would have to locate a smooth bore barrel to change it with. Remember smooth bore barrels are not as accurate as a rifled bore barrel.
You look down the barrel and if it is swirled it is a rifled barrel and if it is not swirled it is a smooth bore
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)
Yes
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.
The bore is rifled so as to put a spin on the bullet. This spinning gives a greater accuracy to the bullet, especially over that of a smooth bore.
Rifled bore and Smooth bore
Rifled slugs are made of soft lead purposely for use in smooth bore shotguns. Actually the "rifling" on the slug deforms to allow the slug to pass through the choke in the bore. If your firearm is of modern manufacture and in good condition it should be safe. Of course it goes without saying that you must use the appropriate type (i.e 2-3/4", 3", etc.) and gauge (410, 20, 12 etc.) of ammunition for which your firearn was designed. If in doubt, have a reputable gunsmith check it out for you.
It improves that accuracy and distance of the bullet by causing the bullet to spin not tumble like a smooth bore barrel musket.
The Thompson submachine gun, commonly known as the "Tommy Gun," did not have a smooth bore; it featured a rifled barrel. The rifling was designed to stabilize the bullets in flight, enhancing accuracy and range. While some firearms with smooth bores exist, such as shotguns, the Thompson was specifically engineered for use with .45 ACP cartridges, requiring a rifled barrel for optimal performance.
You can, but I wouldn't advise it.