Stevens 20 gauge O/U, chokes and shells?

[TheTurkeyTurkey]

I'm going Turkey hunting for the first time and decided on my 20 gauge. I couldn't get any local TSS loads etc so I grabbed some fasteel 2.0, 3 inch, 7/8 oz, #4.

I read manual etc and found one place that can use all chokes except FC above. But it's not from "official" source.

So I'm here to see if anyone can answer this. What chokes can I use for various shells? Want to make sure can use these #4 steels shoots with at least IM?

[TheTurkeyTurkey]

No takers?