The ability to shoot the Berger VLD's is not to be discounted and for that you will need the 8 or 7 twist barrel. Does the wind blow where you live ? If so, you/she will want to shoot the highest BC bullets you can, or the wind will be killing you compared to anyone else who is using a high BC bullet. The factory barrels are in fact 1:9.25 if I recall and any of the custom barrels should be of higher quality (Shilen, McGowan, Lilja etc). If you decide to go the factory route, I have had a lot of success shooting the superformance 75gr HPBT ammo. I only use it for hunting, so I don't use much of it, since one cannot get the exact powder to duplicate the load.

Today, shooting my 243 Win, the 95gr SST superformance ammo was impacting 3" higher than the PPU 100gr loads, so I imagine it must have a substantial velocity difference