My 21" .30-06 is happy with 58 grains of H4350 and pretty much any of the 165's I've ever tried. Sierra's 165 Gameking is very accurate. Nosler's 165 Partition has worked well for me too. I'm seeing right at 2750 fps from my old rifle, with good accuracy. Hodgdon lists 59 grains of H4350 as max.
Forgot you asked about cases. I generally buy 50-packs of Winchester brass. It works well. Size it, trim it before use.
Regards, Guy