a 7x57 would be great for those too. Can't imagine that with a good 7x57 Mauser action rifle and a well fitted stock that you would ever NEED another non-DG rifle.... ever.

Of course if she really doesn't like recoil, you could also consider a 6.5x55; or for impala sized game only a 6x45 (6mm/.223) is also popular in SA...