Just found this interesting, Thought that I would provide a link so you could check it out.
http://www.firearmstactical.com/tacticalbriefs/volume4/number2/article422.htm
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"Of those that will penetrate, the edge is always with the bigger bullet."
http://www.firearmstactical.com/tacticalbriefs/volume4/number2/article422.htm
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"Of those that will penetrate, the edge is always with the bigger bullet."