Up the street from my office lives a Korean vet who served in the artillery. He isn't a gun enthusiast, although he used to hunt and carries a pistol for self defense. While speaking to my father, another Korea vet, I asked what he carried and he said a carbine. I asked if there was any truth to the lack of stopping power, not penetrating the uniforms, etc., he just looked at me and said, "I didn't find that to be the case."
I related that on the 03 board years ago and an Army Captain from Vietnam said he saw an enemy soldier shot in the magazine chest pack with one that knocked him down but did not injure him. I still wouldn't want to be shot by one.