The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools
Old December 14, 2008, 04:49 PM   #1
Dr. Strangelove
Senior Member
 
Join Date: August 1, 2008
Location: Athens, GA
Posts: 1,418
What's up with these cases?

Being the incorrigible range brass scrounger that I am, I picked up a few 9mm the other day that looked like this:



Even after tumbling overnight. Also, the case mouths look crenelated, is that a product of being driven into the rifling or something else? They are all Winchester cases.

Dr. Strangelove is offline  
Old December 14, 2008, 05:02 PM   #2
F. Guffey
Senior Member
 
Join Date: July 18, 2008
Posts: 2,568
Dr. Strangelove, looks like someone got a little carried away with a Lee factory crimp die.

F. Guffey
F. Guffey is offline  
Old December 14, 2008, 05:13 PM   #3
wjkuleck
Senior Member
 
Join Date: March 13, 2007
Location: Ohio, USA
Posts: 1,220
They're from a fluted chamber, e.g., H&K. Possibly a the H&K subgun. Since the roller "lock" is really a "hesitation" lock, the chamber is fluted so as to prevent complete obturation. Thus, the case extraction is aided by the "lubrication" provided by the combustion gases making their way down the sides of the case.

Your CETME and H&K rifles will demonstrate the same phenomenon.

Regards,

Walt
PS I misremember whether the H&K P7 has a fluted chamber...
__________________
Author, NEW! The M1911 Complete Owner's Guide
The M14
and M1 Garand Complete Assembly Guides
The M1 Garand Complete Assembly Guide
The AR-15 Complete Assembly
and (New 4th Edition) Owner's Guides
wjkuleck is offline  
Old December 14, 2008, 05:16 PM   #4
rn22723
Junior member
 
Join Date: December 10, 2001
Location: Burbs of Minneapolis
Posts: 676
HK fluted chamber fired brass!
rn22723 is offline  
Old December 14, 2008, 05:17 PM   #5
rn22723
Junior member
 
Join Date: December 10, 2001
Location: Burbs of Minneapolis
Posts: 676
HK fluted chamber fired brass! From a HK long gun not a hand gun.
rn22723 is offline  
Old December 14, 2008, 05:52 PM   #6
Dr. Strangelove
Senior Member
 
Join Date: August 1, 2008
Location: Athens, GA
Posts: 1,418
Thanks!

These little guys are headed for the poor side of town, as the next chamber they see will be my Ruger P89, not some fancy H&K!
Dr. Strangelove is offline  
Old December 15, 2008, 12:16 AM   #7
Gewehr98
Senior Member
 
Join Date: June 30, 2000
Location: Token Creek, WI
Posts: 4,068
Shouldn't be a problem.

They'll look like hell, but resize just fine for reloading. After enough tumblings and resizings, they'll look almost normal, save for the faint longitudinal stripes that the HK fluted chambers permanently add.
__________________
"Bother", said Pooh, as he chambered another round...

Neural Misfires
Gewehr98 is offline  
Old December 16, 2008, 09:42 AM   #8
veeref
Member
 
Join Date: October 3, 2006
Posts: 41
+1 to what the above posters said, most probably out of an HK fluted chamber. I have an HK UMP conversion and the brass looks exactly like that, even after cleaning.
veeref is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:54 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07504 seconds with 7 queries