I'm going to move away from ballistics, as either gun can handle the parameters you've mentioned and it's assumed she will initially take only one shot. Just as important in this situation is which gun fits her body type better, weight of trigger pull and possibly the sound of muzzleblast- again assuming she tolerates the felt recoil of both guns. The right choice will be more clear at range time.
Last edited by Game Stalker; 09-24-2017 at 05:50 AM.