The printed Hodgdon Reloading Manual using IMR4064 has 42.0gr, 2554 fps, 43,800psi for a start level; and max load at 46.3gr compressed, 2767 fps, 59,700 psi for max load. This is with a COAL of 2.750" for Hornady 165gr SP, 24" barrel and Federal 210M primers.
I would use Hodgdon's information...