thats a pretty safe bet using the white on the neck if they are runnnig broad side. i usually use the brisket or just ahead of the front leg. myfather uses the tip of the nose but he usually makes head shots. i think i posted one in the deerhunting forum. usually up here they are headed straight out or on an angle. a peep sight isnt reallt that precise so i get the front bead on brown and let 'er eat!