Quote:
This paper reviews the scientific support for a ballistic pressure wave radiating outward from a
penetrating projectile and causing injury and incapacitation. This phenomenon is known
colloquially as “hydrostatic shock.” The idea apparently originates with Col. Frank Chamberlin, a
World War II trauma surgeon and wound ballistics researcher. The paper reviews claims that
hydrostatic shock is a myth and considers supporting evidence through parallels with blast,
describing the physics of the pressure wave, evidence for remote cerebral effects, and remote
effects in the spine and other internal organs. Finally, the review considers the levels of energy
transfer required for the phenomenon to be readily observed.
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https://arxiv.org/ftp/arxiv/papers/0803/0803.3051.pdf
The results show that a the highest possible pressure caused by high-speed large rounds can cause a shockwave that reaches the brain and incapacitates in less than 5 seconds.
The pistol round that does this best is the .40 S&W. Not tested would be 10mm, which would be even better, but it pretty much not commercial.
Based on THAT, I am planning to purchase a .40 S&W Hi Power. I have a Sig P226, but it is too "fat".
I own several 1911s and they shoot quite well. My Hi-Power shoots exceptionally well for an unaltered gun. The only thing different is my Hogue rubber grip with finger grooves. For target practice, 9mm is generally 1/2 the cost.
For defense, I fall to the side of 1911. With the above article, the lighter rounds which move fast, with .45 cal, can create better shockwaves. I need to go buy 165 grain +P JHP to replace all of my defensive ammo.
9mm and even .357Sig, with the small diameter, has a tougher time creating the shockwaves. .357 Magnum, with the higher velocity along with mass, does a better job.
As far as a 1911, I have this:
But I WANT this:
