2 and 3 steel, in that order, are my first picks for larger ducks and pheasants where non-toxic pellets are required. If shooting ducks over decoys in fields I'll use #4 shot early when the birds are real close. I'll also use 3 or 4 shot when I expect teal or wood ducks.
The rest are for finishing off cripples, shooting crows, or informal targets.
3" BB is my main goose load and is good for pass shooting ducks.
