Thread: 10mm vs .357
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Old November 6, 2012, 11:34 AM   #26
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Join Date: January 2, 2005
Location: Where the deer and the antelope roam.
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Very interestingly, if one takes the Hornady 500-grain .458 diameter solid bullet and compares the penetration that results from impact speeds varying from about 1500-fps to 2500-fps, one finds that the higher impact speeds produce the least penetration. When driven to about 1500-fps (as the 45-70 will do) one finds that such solids produce nearly 6-feet of penetration in wet newspapers. When the same bullet is driven to about 2100-fps (as is characteristic of the 458 Winchester Magnum) one finds that the penetration is reduced to about 4 to 4 and 1/2 feet.
Elmer, This was further down in the article. There are other things happening besides penetration. That sort of energy is not "wasted" and 4 1/2 feet of penetration is good for anything on this continent.
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