Yes, I don't think you should have a problem, but your pattern may not be consistent.
The Winchester Ranger Model 120 typically uses a 12-gauge shotgun barrel. To find a compatible rifled slug barrel, look for a barrel specifically designed for the Winchester 120 series, such as the Winchester 1200 or 1300. Ensure that the barrel is compatible with your shotgun's action and gauge. It's advisable to check with a firearms dealer or the manufacturer for the most accurate options available.
no you cannot. sabot slugs are made for rifled barrels. I would buy a rifled slug barrel.
yes a rifled shotgun barrel or smooth shotgun barrel
Yes
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.
Depends on what gauge the shotgun is.
a slug is normally use in a shot gun and they are not rifled a gun with a rifled barrel should shoot a Shell that is the same caliber as the gun.
Try e-gunparts.com, MidWest Gun Works, Shotgun News, gun show, gun shop.
You can, but, it will not be a good thing.
A smoothbore is cheaper and works just as well when using regular shot. A rifled shotgun barrel only helps if you are going to be firing slugs, but if you are it improves performance considerably, giving the slug near-rifle accuracy. If you can afford it and plan to be using slugs the rifled barrel can be well worth it and gives you much more versitility.
I have one that I would sell.