The Firing Line Forums

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

Thread Tools Search this Thread
Old March 8, 2012, 04:08 PM   #1
Senior Member
Join Date: August 13, 2010
Posts: 407
Are blackened cases a problem?

I've been loading 9mm rounds with a 124 grain FMJ and 5.4 grains of Power Pistol and they shoot extremely accurately. However, after firing the outsides of the cases are really dirty. Is this a problem? I'm reading on here now that it's caused by too low of a pressure. Do I need to step up my charge, or am I ok like this?
Fusion is offline  
Old March 8, 2012, 04:22 PM   #2
Senior Member
Join Date: February 21, 2010
Location: Rome, NY
Posts: 941
One reason cases are brass is because it expands with the exanding gases in the case behind the bullet. This serves to keep gas blow back away fron the shooter as well as to protect the chamber from wearing due to hot gasses finding their way around the case.

I don't know how much wear you chamber is getting. Keep an eye on it and if you see signs of wear (pitting or "lines" that don't belong there, I'd bump up the pressure a bit but not above the loads listed in the reloading manual.

A bit of bladkening at the front of the case is probably normal, but a small bit.
Jim Page

Cogito, ergo armatum sum
JimPage is offline  
Old March 8, 2012, 04:29 PM   #3
Senior Member
Join Date: August 13, 2010
Posts: 407
Maybe I need to step it up a little and see what it does. I've just always thought the cases got extremely dirty, but they always shot very well and I don't see any pitting or lines in the chamber. Hornady's book gives a range of 4.3-5.7 grains with this powder so I'm not too far from the max charge there. However, I then noticed that the Speer manual gives a starting charge of 5.6 grains, so I'm not sure which is best to follow.
Fusion 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 05:16 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2016 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.06559 seconds with 7 queries