[Blood of Tyrants]

I thought the theory was to drill a neat hole, and tie up one or more buddies or corpsmen to rescue and care for the wounded.

That theory was developed during the Cold War. It works when you are fighting an enemy that treats its wounded and doesn't simply abandon them.

Another problem is that the enhanced penetrator often doesn't wound them bad enough to take them out of the firefight unless you strike them in the head, heart, pelvis, or some other vital organ.

[Buffalo Head]

"That theory was developed during the Cold War"

No, it was a spewcific basis in the design criteria of the 30 M1 Carbine round developed early in WWII.