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Old 12-30-2011, 19:29   #71
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Join Date: Sep 2011
Posts: 310
Originally Posted by arushus View Post
The 10mm rounds they fired were traveling at around 1100fps. True 10mm 180gr rounds should be going over 1350fps, with a round designed to impact at that speed, not a .40sw round used in a 10mm case.
Interesting. Why do they underload 10mm?
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