HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: Issuresix
New Today: 0
New Yesterday: 1
Overall: 12584

People Online:
Members: 0
Visitors: 52
BOT: 2
Total: 54
Who Is Where:
 Visitors:
01: Forums
02: Forums
03: Forums
04: Forums
05: Forums
06: Home
07: Your Account
08: Forums
09: Forums
10: Forums
11: Forums
12: Forums
13: Forums
14: Forums
15: Forums
16: Forums
17: Forums
18: Forums
19: Forums
20: Forums
21: Forums
22: Your Account
23: Forums
24: Your Account
25: Forums
26: Forums
27: Forums
28: Forums
29: Photo Albums
30: Forums
31: Forums
32: Forums
33: Forums
34: Forums
35: Forums
36: Forums
37: Forums
38: Forums
39: Your Account
40: Forums
41: Forums
42: Forums
43: Forums
44: Home
45: Forums
46: Forums
47: Forums
48: Forums
49: Forums
50: Forums
51: Forums
52: Forums
  BOT:
01: Forums
02: Forums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 305
 Pictures: 2357
  · Views: 355998
  · Votes: 1306
  · Comments: 85
 

Support our Advertisers

Case head separation
Discussions related to Guns and Firearms

View previous topic :: View next topic  
Author Message
squirrelbait
Member
Member


Joined: Sep 23, 2005
Posts: 220
Location: Nottingham, NH

PostPosted: Fri Jul 07, 2006 9:14 am    Post subject: Case head separation Reply with quote

Ok, maybe I'm the only one but I have had a couple of case head separations........I believe due to number reloads, but here is the question:
What should I do, if anything, about the ring in the chamber where the separation occurred? Probably brass deposits from the hot gases burning the brass?
I really didn't think it best to try to scrub it out......don't want to scratch up the chamber. Any ideas?
Back to top
View user's profile
DallanC
Site Admin
Site Admin


Joined: Jan 18, 2005
Posts: 3186
Location: Utah

PostPosted: Fri Jul 07, 2006 12:02 pm    Post subject: Re: Case head separation Reply with quote

Chamber and shoot a clean never fired case. Is there any visible ring on the side of the case where it would deform due to buildup? If so ya you should try to clean it... if not you are gtg.

I clean my chambers with nylon shotgun brushes.

-DallanC
Back to top
View user's profile Photo Gallery
Blaine
Member
Member


Joined: Feb 24, 2005
Posts: 260
Location: Maine

PostPosted: Fri Jul 07, 2006 7:14 pm    Post subject: Re: Case head separation Reply with quote

I don't believe a bronze chamber brush would scratch the chamber. I'd use some Break Free and brush, then a cottom swab to clean and dry out any residue.

Blaine

_________________
Shoot straight and above all shoot SMART....and remember God is still in control !!!!
Back to top
View user's profile Photo Gallery
mc223
Member
Member


Joined: Apr 02, 2006
Posts: 115
Location: S/E Kansas

PostPosted: Fri Jul 07, 2006 7:33 pm    Post subject: Re: Case head separation Reply with quote

www.varmintal.com/a243z.htm
You may find the above interesting about polishing chambers. Might ease your discomfort of overdoing it when removing the residual brass.

It has become a practice of mine with cases that are nearing retirement to inspect the inside of the case at the point where the thick and thin of the case meet near the base. I use a small fairly blunt with slight bend dental pick to reach into the case and feel for a slight depression. Since you have already experianced a separation, this is the place described.

_________________
Lettin' the cat outta the bag is a whole lot easier'n puttin' it back.
Back to top
View user's profile
Spacedone
Member
Member


Joined: Nov 04, 2005
Posts: 266
Location: missouri

PostPosted: Fri Jul 07, 2006 8:35 pm    Post subject: Re: Case head separation Reply with quote

i do my reloads in batches and keep the cases sorted into the same batches.

i like batches of 50 because thats what my loading block holds.

i make different batches for different loads.

when one case failes in a batch i dont reload that batch any more.

lose alittle money that way from buying new cases more often but i think its a safety issue.
Back to top
View user's profile MSN Messenger
BillPa
Member
Member


Joined: Mar 17, 2005
Posts: 89

PostPosted: Sat Jul 08, 2006 8:29 am    Post subject: Re: Case head separation Reply with quote

squirrelbait wrote:
Ok, maybe I'm the only one but I have had a couple of case head separations........I believe due to number reloads, but here is the question:
What should I do, if anything, about the ring in the chamber where the separation occurred? Probably brass deposits from the hot gases burning the brass?
I really didn't think it best to try to scrub it out......don't want to scratch up the chamber. Any ideas?

Generally speaking, casehead seperations are due to (1) chamber headspace, (2) excessive FL resizing or (3) a combination of both. Seperations generally occure at the forward portion of the web, but on ocassion along the body or shoulder. From your discription I assume its at the forward portion of the web.

If you suspect any brass buildup in the chamber, it can be removed with most bore cleaners,just takes a bit longer than copper, but I seriously doubt thats your problem.

I guess the first questions to ask, what is your die setup...how much shoulder bump are your using? Standard dies are quite capable of creating excessive cartridge headspace if improperly adjusted.

What is the length (casehead to shoulder) of your fired brass compared to the resized cases? Anything greater than around .006" would be approching excessive cartridge headspace and needlessly over working the brass.

A set of GO - NO GO gages will confirm the boltface to shoulder headspace of the chamber. There are some simple methods of measuring case length. A chamber cast would confirm chamber diameter at the web area.

I suspect more than anything, your over sizing the brass.

Bill
Back to top
View user's profile Photo Gallery
squirrelbait
Member
Member


Joined: Sep 23, 2005
Posts: 220
Location: Nottingham, NH

PostPosted: Mon Jul 10, 2006 5:08 am    Post subject: Re: Case head separation Reply with quote

Billpa, I believe you are correct. I have been playing, over the last couple of years, with my die. They are Hornady FL die. I don't have all the gages but am now set so the die is coming down the case neck about 1/4 inch. In other words I don't think the die touches the shoulder. The only place where I see the die actually compressing/resizing anything is along the body of case just up to the webbing area. Course this is not where i started and the separations occurred on older brass. I just bought some new brass. I will try Spacedone's approach. mc223, rather detailed article but the guy has done one heck of a lot research. Thanks for the inputs.
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Gun & Firearm Discussions
Page 1 of 1
All times are GMT - 7 Hours



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Advertisements
 


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by Dizfunkshunal :.