This is really a question, not an answer but I will throw it out anyway.
In WWII, my Dad was an expert rifle marksman, but could not shoot well with an automatic, so he carried a carbine as his side arm.
If you need that much firepower in a sidearm, would it make any sense to try to instead equip your wife with a light rifle that fires heavy handgun loads, and try to convince her to keep it always on her side / back ?
Maybe this makes sense, maybe not.
In WWII, my Dad was an expert rifle marksman, but could not shoot well with an automatic, so he carried a carbine as his side arm.
If you need that much firepower in a sidearm, would it make any sense to try to instead equip your wife with a light rifle that fires heavy handgun loads, and try to convince her to keep it always on her side / back ?
Maybe this makes sense, maybe not.