First season dove hunting they should be pretty close to you.
Use a Skeet choke or Imp. Cyl. (IC)
you should also be able to break any target on most courses with the same chokes Skeet or IC
I like the AA Shells the best. but you can use any brand you wish.
Things you should look for
#8 or # 7 1/2 size shot
3dram 1 1/8 oz shot
sometimes they don't give you the powder amount
should be from 1175 to 1300 ft per sec. velocity
my fav. AA Shells
AA Super Sport
#8 1300 fps
I like this in my bennelli auto 12ga
AA Lite Target Load
i like this one in my double guns
doesn't kick you as bad