Re: 264. Winchester Powder?
I am shooting 130 Nosler Accubonds with 66.5 grs Retumbo, CCI 250 primer, WW case reformed from 7mm Rem Mag. Out of my 27 3/4" Shilen 9 twist barrel I get average 3350 fps. with super accuracy. I have only shot deer with it but from what I have seen I would not hesitate to pop any elk with it.
Your 9 twist may not like those long 140 VLDs.