Well first off I'll have to brag a bit. I went out this morning and had my limit of canadians and greenheads by 10:30.

Now to the question..... when i was out this morning and the geese started coming over so i stuck in 3.5 BBB. i got one on that pass. Then the ducks were decoying so i switched back the my 2.75 4s.
and the geese came instead of the ducks. So i shot the geese with 4s and they seemed to fold up way better with the 4s than with the 3.5 BBB. Both loads have the same velocity.

What does everyone use for shot sizes on ducks and geese?