Tac,
I have been thinking of the same bullet because I like the idea of one bullet for hunting and LR target shooting and my personal preference for hunting is Berger. The Amax's, however, will be back out in about two weeks according to Hornady--they are in production as we speak.
According to QL, in a 21" barrel and COAL of 2.800", your max load of Varget will be 40.0 gr for 2537 ft/s. All others on your list go downhill from there (again, this is according to QL). In the Hodgdon powders, the MV increases slightly with H414 but not by much. I didn't try any powders other than Hodgdon.