[de Buillion]

"They concluded that a hit in the torso from a .40 supersonic rounbd had a 100% probability of incapaciting a man, while for the .40 subsonic and .45 rounds it was 90% . "

I am not familiar with this info, and have NEVER heard of any handgun combination scoring 100% in any caliber. Can you provide any source info?

[quidnunc]

I read it in a police journal shortly before I retired, which was in 1991.

I was interested because at the time our department was looking at adopting a new handgun as its standard.

As I remember it the study involved the probability of incapacitating a man with a hit in the thorax at the average distance of a police/criminal gunfight involving handguns, which is closer than you might think.

The .40 supersonic round is ferocious, but it is not suitable for normal policing because of its recoil, muzzle blast and flash (important indoors under low-light conditions) and penetration).

I doubt the info is available on-line due to the limited nature of its distribution.