sxs,
If you're a birdhunter like I am you probably shoot fixed chokes anyway but just have the ability to change them out with the multi-choke system. When bird hunting of almost any kind (except maybe goose and turkey) I've got the same choke in.
You'll be fine on 16 with ic/mod, if you want to goose hunt get a 12 gauge 870 pump used for pocket lint and leave the 16 at home.
If you're a birdhunter like I am you probably shoot fixed chokes anyway but just have the ability to change them out with the multi-choke system. When bird hunting of almost any kind (except maybe goose and turkey) I've got the same choke in.
You'll be fine on 16 with ic/mod, if you want to goose hunt get a 12 gauge 870 pump used for pocket lint and leave the 16 at home.