Thanks for illuminating the path, John! I was looking for reasonably priced 168 gr FMJ's for my AR-10 when I found obscenely priced 150's at evergladesammo.com (now even cheaper at $199/1000 with free shipping!). I've believed all of the hype of bc for quite some time, but I ran the numbers in a ballistics software program and the difference was nil except for about 100 ft/lbs of energy out to 800 yards; and up to that point, the 150's actually perform better in many aspects. Your article confirmed my hypothesis! Thanks again.