I plan to start goose hunting this year, but the shotguns I have shoot a 2 3/4 in shell, 12ga, Will this be OK for goose, or do i need a 3in gun and if so does anyone have a suggestion on a good lower pricsd goose gun. I now shoot a 870, but would appreicate any input on what might be a good goose gun. I also shoot left handed.