What Happened Here? .308 case ribbed

B

BigBlack

Guest
Anyone care to guess what happened to these, .308 Federal Case. They were picked up at the range and feel as if they were fire formed to a chamber with rifling's cut in. They were also very sooty all over as you can see in the rim and neck area. They were nearly completely black from soot.

Anyway would like your thoughts!

308ribbed.jpg
 
At one time H&K fluted their chambers to insure feeding and extraction under very dirty combat conditions.
It is an ok idea if you don't reload and you just want to spray and pray.
 
Welcome to the H&K world of assault rifles in 7.62 NATO rifles. The first time I saw this happen I was just on the brink of going nuts seeing my good Lake City brass ruined.
 
not going to reuse. they looked funny so I brought them home to inspect. Was still clueless so I hit all the message boards I am a member of.

Did not know it was such common knowledge.

Thanks guys!
 
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