She is shooting handloaded ammo. Remington cases, CCI 200 LRP, Hornady 308 150 grain SP over 39.5 grains of H4895. Cronos at a little over 2500 fps. I hunt with an old Remington Model 81 auto loader in the same caliber so we shoot the same ammo. So far the load has taken five deer with excellent accuracy and terminal performance. From 30 to 170 yards. The 300 Savage is an outstanding little deer cartridge that truly deserves its reputation.
Forgot to add that I have tried the factroy Winchester 150 SP loads in these guns with acceptabe results. Just like to use my roll your owns to save money. We haven't taken any deer with factory ammo but I don't doubt that it would work just fine.