QuickLoad tells me they are not the same:
Equal weights (41.7gr) in a 308 behind a 168 SMK
AA-4064: 43,800psi/2,435fps
IMR4064: 49,000psi/2,470fps
Burn characteristics are different across the board:
ALSO (big also), Accurate is constantly getting their powders from different sources. Take extra care even changing lots.