I know that if Bryan saw this thread that he'd gladly share with you the BC he lists in his book. He lists the average G7 BC for the 208 Amax as being .324. I'd also highly recommend that you buy his book shown in the link above. You can buy it through this site at this link--> http://www.longrangehunting.com/gearshop/applied-ballistics-for-long-range-shooting.html