The Firing Line Forums

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

Thread Tools Search this Thread
Old May 9, 2007, 03:38 PM   #1
Senior Member
Join Date: January 9, 2007
Posts: 399
9mm luger case trimming

I've read a number of posts that indicate that trimming is basically not necessary. So, just looking for a definitive answer - do I need to worry about trimming cases or will they split before needing a trim?

I'm just starting to load 9mm luger and only producing target rounds that are close to or exactly starting load specs. Using 124g fmj and WSF powder.

Thanks all.
HJ857 is offline  
Old May 9, 2007, 03:44 PM   #2
Senior Member
Join Date: December 3, 2002
Posts: 1,156
Trim 9mm? No.
30Cal is offline  
Old May 9, 2007, 09:14 PM   #3
Senior Member
Join Date: June 4, 2006
Location: West Virginia
Posts: 2,258
You don't need to trim straight wall pistol cases. Shoot them until you lose them or they are no good.
I don't ever remember being absent minded.
CrustyFN is offline  
Old May 14, 2007, 05:56 AM   #4
Senior Member
Join Date: January 9, 2007
Location: Omaha, NE
Posts: 177
agreed, spend time doing more useful things than trimming 9mm cases.
ECLIPSE45ACP is offline  
Old May 14, 2007, 12:32 PM   #5
Senior Member
Join Date: December 16, 2004
Location: Grand Forks, ND
Posts: 5,320
One more vote for not trimming the 9mm. Straight wall cases that use carbine dies just don't grow enough to worry about it.
I don't carry a gun to go looking for trouble, I carry a gun in case trouble finds me.
Crosshair is offline  
Old May 14, 2007, 12:54 PM   #6
Senior Member
Join Date: February 21, 2002
Location: Transplanted from Montana
Posts: 2,311
Do 9mm Luger cases need to be trimmed? As has been clearly stated - -NO! They actually get shorter over many sucessive loadings.

Trimming of cases is primarily a rifle case proceedure. The repeated shooting and sizing of bottleneck cases will cause the brass to stretch.

Various rifle cases have min and max trim lengths listed in most loading manuals. The amount of stretch per case varies because of many factors, and therefore the number of loadings between trimming varies. Exceeding the max case length in rifles will cause either hard chambering or failure of bolt to close on the cartridge.
I pledge allegiance to the Flag - - -, and to the Republic for which it stands….Our Forefathers were brilliant for giving us a Republic, not a democracy! Do you know the difference??? and WHY?
Shoney is offline  
Old May 14, 2007, 01:17 PM   #7
Senior Member
Join Date: January 9, 2007
Posts: 399
Thanks all. I appreciate the insights.
HJ857 is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 06:07 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2015 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.10632 seconds with 9 queries