The list is long,
Neophyte, assuming a well placed shot in the vitals
- Impala
- Springbok
- Common Reedbuck
- Mountain Reedbuck
- Vaal Rhebok
- Duiker
- Klipspringer
- Lechwe
- Bushbuck
- Nyala
- Warthog
- Blesbok
- Etc.
Unless she is willing to pick her shots, and she is a reliable shot, you likely want to go to 140gr, just to be on the safe side, for the larger PG.
- Kudu
- Waterbuck
- Gemsbok
- Black wildebeest
- Blue wildebeest
- Red Hartebeest
- Zebra
- Etc.
If both categories are on the license, just have her shoot everything with the 140 gr, this will avoid confusions. The recoil is a little higher, but still very moderate.
You would be surprised to hear that many local farmers in RSA do not hesitate to take a .22-250 on Kudu and such, and I have shot all of the above (and bigger, e.g. Roan) with a 100gr TTSX out of a .257 Wby, all resulting in instant collapse. Admittedly the .257 Wby has a long established and demonstrably verified reputation to kill way outside its weight class, but my wife (also a petite, we had to shorten the stock of her Blaser R8) shot about the same list, including Wildebeest, with her .270 Win and 130 gr TTSX.
Keep her shots at a reasonable distance (150 to 250 yards); have her only take broadside shots; and the Creedmoor is just fine. Where it runs into problems is when folks confuse punching paper at 800 yards and hunting. It does not take much residual energy for a 150 gr bullet to poke a hole in a paper target, but it takes a lot more to deliver killing power and deep penetration to a stout animal. This is why the Creedmoor is developing a poor reputation in Africa, and the Western USA I might add, the caliber was never designed to shoot a Kudu or an Elk at 800 yards, even if it can reach a paper target out there.
The one animal that I would say is a no-no is Eland, and of course all dangerous games, although leopard will fall easily to anything that can bag a white-tailed deer.