What Happened Here? .308 case ribbed
12-01-2008, 08:59 AM
#1
Spike
Thread Starter
Join Date: Oct 2008
Location:
Posts: 10
What Happened Here? .308 case ribbed
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!
Anyway would like your thoughts!
12-01-2008, 09:17 AM
#2
Join Date: Sep 2008
Location: Lincoln, NE
Posts: 20
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.
12-02-2008, 11:33 AM
#6
Giant Nontypical
Join Date: Feb 2003
Location: Texas - BUT NOW in Madison County, NY
Posts: 6,270
RE: What Happened Here? .308 case ribbed
They were fired in a fluted chamber. There are military weapons that have chambers fluted that way to aid in extraction of the fired cases. I had a Russian SVT40 Tokarev once that had the neck of the chamber cut like that. Ruined cases after several reloadings.....
