Depends on how old the shotgun is.
In short, it is a barrel designed to fire slugs. Some are smooth bore which are intended to shoot rifled slugs or buckshot, while others are rifled and intended for shooting sabot slugs only. This is a very good and trusted answer. lcj
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.
Yes. That's the only type of shotgun you should fire a sabot slug from. Rifled shotguns are intended for rifled slugs only. Actually, the opposite is true. Rifled slugs are preferred for smooth barreled shotguns. The 'rifling' on the slug is actually just fins that permit the slug to squeeze through the choke on the shotgun barrel. Sabot slugs are intended for rifled barrels, as they will give better accuracy. Some sabots may be used in smooth barrels, but you are paying more for sabots and not getting the accuracy you would get by using a sabot in a rifled barrel.
yes.
NEVER FIRE AMMUNITON IN A WEAPON NOT DESINGED FOR IT!!!!!!!!! In a shotgun, you fire shotgun slugs or shotshells, NOT rifle projectiles (unless using a sabot) In the case of a sabot, you MUST contact the Mossberg.
Yes and no. The yes comes from simple fact, if the projectile can move down the barrel, it can be fired. I've seen .221 Fireballs fired out of a 7TCU barrel. The no is because you cannot do it well. In effect, if you shoot a slug down a smooth bore shotgun barrel, you will have little in the way of accuracy. Slugs should be shot from a slug barrel, and shot from a smooth bore.
Yes
Sabot slugs are made for rifled barrels. Using regular slugs and rifled slugs over time will deposit lead in the rifling grooves inside the barrel gradually hurting your accuracy. Using the sabot slugs greatly improves accuracy making it possible to shoot accurately at 100 yards. It makes your shotgun into a rifle in a way. Hope this helps.
That will depend on your shotgun. The best way to find out is to buy as many different types/brands as you can and shoot them.
yes for a shotgun you need a rifle barrel DO NOT shoot slugs if you have a poly-choke!
long