I used to duck hunt but quit when I had to work all the time. Spent what few off days I had for deer hunting. Now I am retired and thinking about trying duck hunting again. I sold my 12 gauge earlier this year and have only a 20 gauge now. Would this work for duck hunting and early goose? Also what size shot should I use for the 20 gauge? Most of my hunting involved floating down the river in my jon boat and shooting ducks and geese that flew up at close range.