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#Post#: 684--------------------------------------------------
Case Annealing
By: Yote59 Date: December 3, 2012, 7:23 pm
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Ok..for all you roll your own guys out there. I have read
several articles about "case annealing." Those who do claim it
improves accuracy and extends case life. I remain skeptical.
What about you?
#Post#: 687--------------------------------------------------
Re: Case Annealing
By: GrandLordKhorne Date: December 3, 2012, 7:49 pm
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I do case annealing. It makes a difference in case longevity
and improves performance in older cases.
Big thing is that with heavy loads and magnum cartridges the
case hardens and in such a state it is more prone to
cracks/rupture. Annealing counteracts this hardening, extending
case life. By the same token with brass that has been fired
repeatedly annealing softens the brass so that it flows in the
die set more easily which results in better performance.
#Post#: 688--------------------------------------------------
Re: Case Annealing
By: Yote59 Date: December 3, 2012, 7:58 pm
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[quote author=GrandLordKhorne link=topic=96.msg687#msg687
date=1354585774]
I do case annealing. It makes a difference in case longevity
and improves performance in older cases.
Big thing is that with heavy loads and magnum cartridges the
case hardens and in such a state it is more prone to
cracks/rupture. Annealing counteracts this hardening, extending
case life. By the same token with brass that has been fired
repeatedly annealing softens the brass so that it flows in the
die set more easily which results in better performance.
[/quote]
I think I will do some testing on a few cases. Anneal 5 cases,
and 5 without. Keep track of number of times reloaded and see
which last the longest. Should be interesting. If it "really"
makes the neck "softer", it might work....still skeptical until
I test it. Just call me doubting Thomas I guess.... :'( :'(
#Post#: 690--------------------------------------------------
Re: Case Annealing
By: Bwana J Date: December 4, 2012, 2:53 am
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I've often wondered about Annealing cases but have never done
it. I'd be interested in the results of your study.
#Post#: 691--------------------------------------------------
Re: Case Annealing
By: Yote59 Date: December 4, 2012, 6:39 am
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[quote author=Bwana J link=topic=96.msg690#msg690
date=1354611197]
I've often wondered about Annealing cases but have never done
it. I'd be interested in the results of your study.
[/quote]
I will let you know the outcome... ;D
#Post#: 826--------------------------------------------------
Re: Case Annealing
By: lpreddick Date: December 12, 2012, 8:43 am
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split necks is a sign that your brass is too work hardened and
should stop doing this if properly annealed. factory barrels
seem to be the worst at this since most of their chambers are
oversize in that the brass measures .003 or more at the neck
after firing. custom chambers are tighter and brass isn't
worked as much, but resizing after firing does work it some.
proper annealing is almost an art and if done correctly i
believe it helps prevent splits and softens the brass enough to
give a good seal at firing.
#Post#: 827--------------------------------------------------
Re: Case Annealing
By: Yote59 Date: December 12, 2012, 10:20 am
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[quote author=lpreddick link=topic=96.msg826#msg826
date=1355323428]
split necks is a sign that your brass is too work hardened and
should stop doing this if properly annealed. factory barrels
seem to be the worst at this since most of their chambers are
oversize in that the brass measures .003 or more at the neck
after firing. custom chambers are tighter and brass isn't
worked as much, but resizing after firing does work it some.
proper annealing is almost an art and if done correctly i
believe it helps prevent splits and softens the brass enough to
give a good seal at firing.
[/quote]
I agree with you on factory barrels. I never resize my brass.
Once fired in my gun....it expands to the circumference of the
chamber in my gun....don't make cense to me to size it back
down. Just over works the brass to the point it will split.
#Post#: 904--------------------------------------------------
Re: Case Annealing
By: lpreddick Date: December 13, 2012, 8:18 am
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totally agree but brass also expands longitudinally...a hard
bolt loft signifies this and is corrected by pushing the
shoulder back by .001-.002. granted fl dies can do this but the
case is also sized...don't like this, so i had my gunsmith make
a bump die from a newlon blank and it is sweet! it only pushes
the shoulder back until the case chambers with just the right
amount of resistance at closure. he has to charge same as
chambering a barrel, so i only have this one for a 22-250. for
my les baer custom varmint ar i have to resize and bump .003 to
be sure the case chambers. a properly annealed case resized and
bumps easier than a work hardened one. so many little things
but it's worth it.
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