Actually .284 bullet offers slightly better BC then the comparable .308 bullet. In a apples to apples by this I mean a 140gr/.284 is equal to a 165gr/.308 - same SD.

308win and flat aren't 2 words I'd use together. The 7 08 has the flatter trajectory. 30 cal means accurate, don't agree with this either plenty of other calibers that are accurate. Not to mention it has more to do with the guy behind it then the cartridge inside of it.

.308win is a good cartridge, just don't agree with your logic.

In terms of the poster either will suffice.