I have a 6.5-06AI and have had the conventional 6.5-06 as well. Using double based powders like RL26 and N570 in the AI you can push 140s over 3300. Using H4831sc I had ejector swipes at 3200 and settled around 3170. Brass life (Win) was horrible (4 or 5) until the primers got loose. I'm not through with playing with the nitro powders, so I can't say where that will end up. In both barrels H4831sc gave great accuracy when loaded hot, accuracy was good going up, but great only at firebreathing levels.
