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Old 12-01-2008 | 09:17 AM
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atlas366
 
Joined: Sep 2008
Posts: 20
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From: Lincoln, NE
Default RE: What Happened Here? .308 case ribbed
HK 91, they have fluted chambers. It's not rifling. It is used to increase reliability with the HK's roller locked blowback action. Makes the brass look weird, but isn't anything unusual.
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