I saw xpert is now offering a #2/4 duplex too. I find it hilarious because all their shells are duplex plus some lol. Whats the pellet count on these 6.5s vs 6s and 7s? I find it funny that win thinks they can size xpert shot to the 1/2 size. From your numbers it looks like a #6/7 duplex (if you can even call it that).