As a general rule, no.
Either. In general, slugs can be fired through any standard shotgun barrel. An exception is for Extra Full Chokes, which are not standard. Best accuracy with slugs in probably modified choke.
Yes. Slug barrels have a different "Choke" then shot barrels that make them more accurate when firing slugs, but you can fire slugs with a stock 1200 barrel.
yes for a shotgun you need a rifle barrel DO NOT shoot slugs if you have a poly-choke!
Yes. Rifled slugs are intended to be fired through a smoothbore barrel. Sabot slugs are intended to be fired through rifled barrels.
Of coarse that's what slugs do :)
Slug barrel
no
You can, but manufacturers typically recommend that you do not. Shooting lead pellets will be less damaging and would require alot of shooting to cause any serious damage. Shooting steel or tungsten, however, will cause significant damage in a short amount of time. A smooth barrel will handle pellets, buckshot, sabotted slugs or standard slugs. A rifled barrel should be used for sabots and slugs only.
The mossberg Model 88 maverick can definitely shoot slugs and with fair accuracy too with the un-rifled stock barrel. Try the Winchester Super X 2 1/2 inch 1 oz. But hang on to it or it will hurt you. The recoil is roughly doubled.
No.
They don't ! Slugs are exclusively vegetarian and have no interest in harming people !
Most shot guns can handle deer slugs.