Pharm,
With the results you're getting with BG, ti would be tough to beat. I personally have had mixed results with BG, as I have with CFE-223. 2000-MR seems to be more consistent with both the 7-08 and the AI, so I'm pretty sure they aren't the exact same powder. Could be the lots though, I guess. 140 gr Accubonds at 2960 fps in the AI, and 120 gr NBTs at 3170 fps in the std 7-08, both consistently sub-MOA are what 2000-MR is producing. Good stuff.
bludog