Dr. Deer :
I live in a place where reloading components are non existent. For making things more difficoult, my favorite hunting calibres are 30R Blaser and 8x68S. In my experience , if you have enough brass, it is easier to reload the 30R. I am disassembling rounds of other calibres (308 & 3006) to get them working (I have 2 rifles in 30R). The 8mm needs better suited powders to reach its potential.
With IMR 4350 I have obtained 2950 fps with 180 grs bullets,then I downloaded to get 2800 fps, so brass wil last longer.