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Old February 16, 2011, 07:58 PM   #6
raimius
Senior Member
 
Join Date: January 27, 2008
Posts: 2,199
The logistics really don't support a shift. The DoD has billions invested in the 5.56. Most troops do OK with it, and they do issue larger caliber arms to Designated Marksmen, snipers, and many machine-gunners.

Would something like 6.8mm be better? Probably...however, the DoD isn't about to spend billions upon billions to gain ballistic performance on the margins of most troops capabilities.
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