Don't own one in Savage, but you've picked about the best cartridge for her. Superior to the 223. I don't see why she shouldn't enjoy it. High performance cartridge.... flat shooting and low recoil. I doubt that it will be long before you will have to get some reloading dies for it. As for the trigger, you can get a Timmeny for it at a later date if you need to. Savage makes a decent rifle and is well known for its accuracy out of the box.
No such thing as a stupid question. What is stupid is not asking it.