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Competition, Tactics & Training
Self Defense & Handgun Carry
The Importance of Pistol Caliber in Home Defense
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<blockquote data-quote="kingfish" data-source="post: 3767809" data-attributes="member: 50496"><p>Not sure where you got this info from, but it goes against everything I and apparently the ammo makers seem to believe. If relative energy transfer was the most important factor, you would want a bullet that flattens out nearly instantaneously and stops which would transfer the most impact energy in a very quick spike. All main stream defense handgun ammo is designed for a minimum of 12" of penetration with controlled expansion which spreads out the energy transfer spike if velocity and bullet weight are the same. There is a belief amongst some ballistics experts in what is called hydrostatic shock which is a pressure wave that travels through a fluid medium that causes incapacitation but most agree it is minimal in handgun ammo and doesn't come into play until you get above 1500 fps. It is controversial as some studies have shown some support for it while others have not.</p></blockquote><p></p>
[QUOTE="kingfish, post: 3767809, member: 50496"] Not sure where you got this info from, but it goes against everything I and apparently the ammo makers seem to believe. If relative energy transfer was the most important factor, you would want a bullet that flattens out nearly instantaneously and stops which would transfer the most impact energy in a very quick spike. All main stream defense handgun ammo is designed for a minimum of 12" of penetration with controlled expansion which spreads out the energy transfer spike if velocity and bullet weight are the same. There is a belief amongst some ballistics experts in what is called hydrostatic shock which is a pressure wave that travels through a fluid medium that causes incapacitation but most agree it is minimal in handgun ammo and doesn't come into play until you get above 1500 fps. It is controversial as some studies have shown some support for it while others have not. [/QUOTE]
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