Like Cooper said -

"Problem one is survival. Problem two can be dealt with in court."

In other words, better tried by 12 than carried by six.

Ammo companies likely don't offer reversed HBWCs for Fear of the old "Dum Dum" bullet issue, not because they don't work.

And we're talking close and dirty defensive shooting, not long range. A round that expends it's energy in the target would seem to be well suited for the purpose.

In the case I mentioned above, the exchange took place over the rear end of a full sized car. If I recall, the deceased was hit three times in the torso area.

The shooter was one of our early pioneers in the days before IPSC. It was still "Combat Pistol Shooting", Jeff cooper was the High Priest and the .45 ACP was King.