The choke spreads fairly quickly and is use for upland hunting such as: quail, rabbits and close range game.
Yes, skeet choke is more restricted than cylinder choke. A cylinder choke has no constriction, allowing for a wide spread of shot, while a skeet choke has a slight constriction that helps improve shot density and accuracy at short ranges. This makes skeet choke more effective for shooting at fast-moving targets like clay pigeons in skeet shooting.
Improved cylinder will be fine.
You can use steel shot with a choke anywhere from cylinder to modified, i wouldn't recommend using steel with a improved modified or a full choke.
if your are shooting buck shot i think either should work fine however if you are shooting slugs choke tubes are not recommended and you shout get a slug barrel which does no accept choke tubes and has no threads
You can shoot slugs in a double. Slugs are best shot through a cylinder bore or improved cylinder choke. The tighter the choke, the more they will be disrupted. There is risk of excessive wear and damage through a tight choke--tighter than Modified Choke.
Cylinder to Full depending on what discipline you are into.
improved cylinder
Basically, no choke at all
Cylinder choke
Cylinder bore- no choke at all.
Improved cylinder or larger. Actually alot of folks do very well with a skeet gun.
A Cylinder bore has no choke at all.