MacLorry - you sound like one of my old college professors - dry to the bone but with info that knocks the socks off. Looking at your G1 and G7 Drag Profile graph it came to me that two of Bryan�s velocity zones are completely within the Mach 1.7 to 2.6 range and a third velocity zone is about half in. All the data in the world within the Mach 1.7 to 2.6 range can�t tell you if a particular bullet better matches G1 or G7.
For some bullets like the DRT .308 200 grain all of Bryan�s data points are within that single line zone. You can guess from the shape of that bullet it will best match G7, but it�s a guess. Paging through I found the Sierra .338 250gr, Lapua .224 69gr, Hornady .243 100 gr, Hornady .243 105gr and Berger .243 108gr are some others with all their data in the Mach 1.7 to 2.6 range. Ouch!
You did say the graph had other implications � that�s an understatement.
