When I had to use a shotgun, I found my modified barrel shot #1 buck better than 0 or 00
It has been MANY years since I've used buckshot, but I would have to agree on #1. I used to use Winchester Mark V buckshot in #1 buck. It was "fantastic" when used at 50-75 yds. Now NH has made it illegal to use anything smaller than 00 buck. More genius............