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After 50 Years I'm Back

 
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  #8  
Old 04-13-2013, 06:51 PM
Silver Member
 
Join Date: Aug 2012
Location: Champaign, IL
Posts: 180
Re: After 50 Years I'm Back

Unless you have loaded ammo stored over a long period of time, empty brass should never go bad.

Stress is what makes brass work harden. The bullet is mostly lead with a thin copper jacket & has a different heat expansion ratio than brass does. Temperature changes will over time cause more stress around the neck, because brass will expand & contract at a different rate than the bullet, it will be cold worked every time there is a temperature change. This will cause the brass to slowly become harder. Sometimes enough to split a case neck. Working 46 years in the machine tool trade as a machinist & toolmaker, I have never seen brass become brittle just because of age age.
However I would be concerned about loaded ammo having the potential to split case necks when fired if they aren't already split.
I have at least 20 boxes of Herter's 22-250 brass left over from the mid 1970's. I plan to begin shooting loaded cartridges using this brass within the next few weeks.

If I discover I'm wrong, I will eat crow & fess up.
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  #9  
Old 04-13-2013, 07:18 PM
Platinum Member
 
Join Date: Jan 2009
Location: Rochester, NY
Posts: 1,459
Re: After 50 Years I'm Back

Welcome back, tell us how you progress okay.
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  #10  
Old 04-13-2013, 08:28 PM
Junior Member
 
Join Date: Dec 2012
Posts: 11
Re: After 50 Years I'm Back

So far no problems. However, i did find changes in volume from the current cartridges.
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  #11  
Old 06-16-2013, 07:19 PM
Junior Member
 
Join Date: Feb 2013
Location: SoCal
Posts: 15
Re: After 50 Years I'm Back

Did you say .220 Swift?
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  #12  
Old 06-16-2013, 09:10 PM
Gold Member
 
Join Date: Aug 2008
Location: east central fl. /n.c. pa.
Posts: 632
Re: After 50 Years I'm Back

its amazing how our opinions can vary. im still using some old h570 that is
ww2 vintage. ive also had some that went bad 30 years ago.
as for brass i feel it hardens with age. ive seen new in box older brass with neck splits. annealing might be a good option. trashing might be a better option. time will tell if its good. or not.
you were one of the early 7 mag owners. the lymans were good but not nearly as popular as unertle back then.
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  #13  
Old 07-19-2013, 01:53 AM
Silver Member
 
Join Date: Aug 2012
Location: Champaign, IL
Posts: 180
Re: After 50 Years I'm Back

Quote:
Originally Posted by TracySes23 View Post
Unless you have loaded ammo stored over a long period of time, empty brass should never go bad.

Stress is what makes brass work harden. The bullet is mostly lead with a thin copper jacket & has a different heat expansion ratio than brass does. Temperature changes will over time cause more stress around the neck, because brass will expand & contract at a different rate than the bullet, it will be cold worked every time there is a temperature change. This will cause the brass to slowly become harder. Sometimes enough to split a case neck. Working 46 years in the machine tool trade as a machinist & toolmaker, I have never seen brass become brittle just because of age age.
However I would be concerned about loaded ammo having the potential to split case necks when fired if they aren't already split.
I have at least 20 boxes of Herter's 22-250 brass left over from the mid 1970's. I plan to begin shooting loaded cartridges using this brass within the next few weeks.

If I discover I'm wrong, I will eat crow & fess up.
Here it is 3 months later. No split necks yet. I'll keep shootn' & report back if I get split necks in a few months.
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  #14  
Old 11-06-2013, 07:03 PM
Silver Member
 
Join Date: Aug 2012
Location: Champaign, IL
Posts: 180
Re: After 50 Years I'm Back

Quote:
Originally Posted by TracySes23 View Post
Here it is 3 months later. No split necks yet. I'll keep shootn' & report back if I get split necks in a few months.
I got my first split neck after the 7th load. A few boxes were maximum loads by the book. I'll likely get more on splits the next reload. The necks on these were a little thin to begin with. .010" - .012".

Judge for yourself.

Spencer
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