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Old 01-09-2006 | 10:04 PM
  #29  
Pglasgow
Nontypical Buck
 
Joined: Jan 2006
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Default RE: The misuse of Powerbelts

txhunter wrote:

I would be curious how the roundball comes out when using the Taylor index: http://www.loadammo.com/Topics/July02.htm I would contend that looking at 450 ft/lbs is a very poor way to evaluate the "knock down power" of a slow moving lead projectile. However, I don't know the ballistics of a round ball, so I can't plug it into the Taylor formula. Anyone else got the numbers?

If someone who has clocked their roundball hunting load will post their muzzle velocity, I will post the ballistics for you.

It is funny that you mention the Taylor index. There is a measure I recently read about called kinetic pulse. One can read about it here http://www.xmission.com/~fractil/math/kp.html. Basically, the theory states that the volume of wound channel is a function of momentum AND energy being proportional to the product of both these measures. He equates a projectiles killing power as being directly measured by the volume of the wound channel. The theorist performed tests by shooting projectiles into a moist clay lake bed near Salt Lake City. By filling the cavities with water and measuring the quantity of water it takes to fill the cavities he empirically determined the mathematical relationship.

While it may not have been the best laboratory, I do respect the fact that he has attempted to follow scientific method in drawing his conclusions. If nothing else, it is a very good and interesting read. I encourage everyone to read it.

Happy Hunting, Phil
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