6.5x284 Win shows similar pressure: Magnum 140 SIE SBT 55.8 2,800 62.0 3,070 64,000 3.060
I would think that 6.5-06 pressures are supposed to be in the .30-06 range. Under 60k psi. I have not seen specs for the A-Square version. Even with lower pressures it might be able to keep up with the .270 because some of those 6.5 bullets are very smooth.
I wonder how the Scirocco 130-gr 6.5 bullet shoots from a 6.5-06. Or, a 140-gr VLD hunting bullet.