Have you tried a new recoil pad for the little lady ?
2400 fps is slow for a 180 30/06 should be in the 2700 fps range .
I have been using the 1.5 inch limb saver recoil pads on all of my rifles up to 458 win mag with 705 gr lead bullet at 1800 fps yes recoil is manageable but steel will kick you a lot ! my 458 is just 10.25 pounds with scope and a thin barrel new mod 70 CRF 24 inch
I will be putting the 1.5 inch recoil pad on a 458 lott I am having made for me along with a hart R.A.D. 2A recoil reducer in the stock but I am planning on the 458 lott shooting 705 gr bullets around 2000 to 2200 fps a whole lot of recoil on this one L.O.L
a 30/06 with 180 in the 2700 fps range WITH THE 1.5 INCH LIMB SAVER recoil pad will have felt recoil more like a 243 with out recoil pad .
Here is a 30/06 98 Mauser I just did for a friend the stock was cut very short I had to add 1/2 inch spacer and the 1.5 inch recoil pad to get to 13 7/8 inch oal .
I am retired and just do recoil pads for friends around me in New Mexico but it will help the little lady a whole lot if the rifle is fitted to her .
barnes 150 tsx 168 tsx and the 180 tsx will do what you are wanting to do with no problems
which ever one will shoot the very best go with it .
the barnes ttsx are made to open very quickly on impact the barnes LRX are better with the 300’s unless you are intending on shooting past 400 yards which you should not need to do in Africa.
Just making a suggestion to help her on recoil management with the lovely 30/06
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