Even if we were to accept your premise that QL is inerrant, which I reject. Your argument is that modern powders have made the 308 equivalent to previous 06 loads, and hence is equal.

One could use the same logic to assert that the 30/06 is equivalent to the 300 H&H, since current 30/06 loads equal the originally introduced loads in the H&H. crazy

The simple fact is that the 30/06 has more case capacity than the 308. So all other variables held equal, the 06 has a higher velocity potential. Whether the difference is significant is subjective.

But you do get a gold star for getting all the way through a post without calling anyone a clown.