Thread: 10mm vs .357
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Old November 18, 2012, 03:05 PM   #94
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Join Date: January 2, 2005
Location: Where the deer and the antelope roam.
Posts: 2,002
While the .40 call is only 14% "wider" than the .357, its frontal area is 44% larger. Think back to school days; 1/2 diameter squared times Pi.*

I see again and again "energy" used to describe handgun power. At handgun velocities, energy is moot. All that matters is penetration x the size of the hole.

A parallel example: I often see the argument that a 9mm round that expands to .70 caliber is just as good as a .45 that expands to .98". Sure, its only .28" wider - no, it's not. In this example, the .45 has more than twice the frontal surface area. That means a 200%+ bigger hole - the ENTIRE LENGTH of the wound cavity.*
With all due respect, I do believe you are smoking crack.
My rifle and pistol are tools, I am the weapon.
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