I do alot of goose hunting if deer is not in season I use a 12 ga. 28" barrel Benelli Nova. For shells I wont shoot anything but 3 1/2's I like BB for shot size for an all around all season I am a big fan of the stopping power in Black cloud Federal. Technically I believe a 3 in. shell will shoot a little further bc the 3 1/2 has the same amount of powder just less shot so it doesnt hafta use as much energy to push it but thats why I have a 28 in. barrel to get that little extra bc I like my extra shot in the pattern. I do the best in my gun with a mod. choke but the guns will vary. I will throw a full late season for the long shots but miss a lot .
You will need a plug- that's federal law. Drobs - tube can only hold two. Also, be careful that plug is sized for 2 3/4, and not just 3 or 3.5.I dont think it is Federal Law down here. I would post the link if my computer was working. Last year down here was the first year you could pull your plug out down here. You can only do it during the early goose season though.
Not to call you out but the nova shoots up to 3s, the super nova shoots the 3 1/2s. I have both guns