A properly loaded shotgun shell slug load, yes.
yes a rifled shotgun barrel or smooth shotgun barrel
Yes these are section 1 ammunition and require an FAC
No
At this time no,there are not any available.You could have a model 1300 slug barrel redone and have the gas ports added to this barrel.Then it will work fine in your model 1400 Winchester shotgun.
As long as the slug barrel is smooth bored(does not have rifling) then it can be used with bird shot.
Yes.
no
I'm guessing that your question is "What are the basic parts of rifle and shotgun ammo?"Rifle- A rifle cartridge is made up of:PrimerbrasspowderbulletShotgun- A shotgun cartridge is made up of:Primershellpowderwaddingbb's(or slug/other projectile)
Depends on what choke it has.
I have one that I would sell.
Depending on condition, $325-$375
yes i have done it