yes.
yes for a shotgun you need a rifle barrel DO NOT shoot slugs if you have a poly-choke!
Can you Yes, should you NO. a full choke should not be used to shoot slugs.
Pellets or slugs. shotguns usually shoot shot or pellets, but you can shoot slugs. in Indiana we use a shotgun to hunt deer and use shotgun slugs, better to use a barrel with no choke in it. cylinder bore preferred.
Guns that shoot slugs are specially designed for slugs. It depends on your gun but most are not designed for this purpose I do not recommend testing it for if they are not the right barrels they WILL break.
Yes
yes you can but onaly riffled slugs
yes , you can shoot snails and worms too
with the wingmaster barrel you can only shoot lead, but if you change the barrel to a slugster you can shoot slugs and buckshot, they also have a barrel for steel shot to.
of course you can
No.
yes and they sell rifled slugs that shoot better
rifled choke tubes for sabot slugs and cylinder or improved cylinder choke tube for foster type slugs. you can shoot slugs with semi-auto. experiment to find what cycles the best without jamming.