3.5's arent all that much more expensive the store i work at they are 300 bucks for the 3.5 (super mag) and $270 for the 3". But there is a 30$ discount on the 3" right now. aas far as which one for geese mybe go to 3.5 but turkey just spenfd the little extra money on premium shells(beings it only takes one shot on turks usually)and still reach out to 50 yards. i thought i would use the 3.5 but havent even bought the shells for it yet just stuck with 3's for goose, mainly because i have only gone a few times and dont take it super serious.