Here is all you need to know:

Remington model 700 youth
Remington model 7
Ruger M77 Compact

Those will fit her. The Ruger being the smallest, the 700 being the biggest.

Now as for caliber....Listen close. You can get anything you want, but here are the facts. These calibers will work fine.

.243, 7mm-08, .308. These calibers match the guns above. All will cleanly take deer to 300 yards with the right bullet. As far as recoil goes, the .243 is least, the .308 is most.

NOW the kink in the carpet************ I bought my wife a new gun last year, her choice, and she picked the remington 7400 carbine in 30.06. She is 5'1" - 5'2" and 120 lbs. It is a tack driver in her hands. So let her see all different sizes and styles.

Finally, if you want to think about one more thing to muddy thewater, listen close.

There are two companies making " LOW RECOIL " rounds. Remington and Federal. They use a lighter bullet designed to open up at lower velocities. They also cut the powder charge. What all this means is less recoil felt by the shooter. You can get them in .270, .308, 30.06, 7mag, and others, but I would not recommend them for her. So you like this idea? You buy her a bolt action.308, and a box of low recoil ammo. She now has a .308 caliber that as she shoots and learns to tolerate the recoil, she can go to full standard rounds, but for now she is feeling recoil less than a .243 out of that same .308 rifle. Thats the thing about the low recoil rounds, they have a felt recoil either right at or just below that of a .243. That is a great deal for women and / or kids. And I am saying the same thing about the .270 and 30.06. Recoil at or just below a regular .243. All calibers in the low recoil line up are good to kill game out to 200 + yards. Low recoil rounds will not fully cycle a semi auto gun though. NO semi-autos.

It is something to consider at least.

I hope I have helped..... Feel free to PM me if you need further.

God Bless.