First, I'd suggest looking at a few "burn rate" charts, next, the next time your S/O shops on Amazon as her to include a copy of
Lyman's Long Range Precision Rifle Reloading Hand book *, It lists a 130 Berger w/ 36.2 gn. of 4166 @ 2718 fps @61.3 K psi.
One of the reasons shooters go with...