welll shot size doesnt really matter

if tehres a field that the geese are feeding in near by with a few decoys u might get a few yearlings to break off but i doubt it cause the birds were up ehre for 2.5 months ponded by us and theve seen lots of decoys,,, ur best bet would be to maybe get a .308 or somthing similar and take a few pokes at them with that hehe JK

just a call doesnt do much but turn there head if they cant see anything they will just fly by unless they actually feed near by

BRAD