You can only draw one shotgun buck tag but you can buy a second one when they go over the counter in late October if they still are available in your county. No matter what you can only shoot 2 bucks during the entire year, but it can be a combination of two through out any of the seasons. So you can harvest 2 with shotgun but then you can't harvest any other bucks with any other type of weapon or one with a bow and one with a shotgun and such as long as you don't harvest more than two bucks.