Your best powder choices are H-4831SC (short cut) reloader 19 and Mad pro. My partner loaded H-4831 in his Savage 270 WSM with a 130 gr TSX and we chronographed 3443. /ubbthreads/images/graemlins/ooo.gif
That is fast...who needs a 7MMSTW? /ubbthreads/images/graemlins/confused.gif
I am loading up some 130 Grn Noslers for my Savage H4831 Have to see where these take me this is a new round for me but the rifle is ungodly accurate with factory stuff so far.
I use MagPro with the Nosler 140 gr Accubond and my Model 70 groups this load 1/2 inch and under, depending on my shooting. I would try MagPro if i was you. /ubbthreads/images/graemlins/grin.gif