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Very Hot Topic (More than 25 Replies) brass annealing (Read 13374 times)
rfd
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brass annealing
Oct 7th, 2014 at 12:26pm
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currently using aa5744 for my .45-70 cartridges, with mostly starline brass.  some of my older brass is showing signs of black along the case sides after firing, as if the mouth isn't expanding and the brass has gotten too hard.  sounds like annealing is in order?   

what annealing process are you using?

  

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uscra112
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Re: brass annealing
Reply #1 - Oct 7th, 2014 at 1:35pm
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Heat up the lead pot.   Oil the cases first, then dip 1/2" deep until I feel the heat in my fingers.  Drop in water to stop the heat from moving too far down the sides of the case.  Done.  Depth of dip and time of immersion must be consistent.
  

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rgchristensen
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Re: brass annealing
Reply #2 - Oct 7th, 2014 at 1:54pm
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   I have annealed a lot of cases over the years and have given it up as a bad idea.    Partly because it is a LOT of trouble to do correctly, and partly because it is even more trouble to do it uniformly.
    One of the neatest schemes I have seen recently is an aluminum block floating in a lead-melting pot with recesses drilled in it for the ctg case necks, which can be left for a given time to anneal.    If I were ever to anneal cases again, this is the way I would do it.

CHRIS
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uscra112
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Re: brass annealing
Reply #3 - Oct 7th, 2014 at 2:04pm
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I like the floating block idea!   If I had many to do, I'd do it.   Since I never do more than maybe two dozen at a time, I've just relied on the old eye-hand feedback system.  

Have to agree that the flame method is hard to control.  I musta ruined dozens of cases by doing it that way.  Why I now use the lead pot.  

  

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rfd
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Re: brass annealing
Reply #4 - Oct 7th, 2014 at 2:20pm
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rgchristensen wrote on Oct 7th, 2014 at 1:54pm:
   I have annealed a lot of cases over the years and have given it up as a bad idea.    Partly because it is a LOT of trouble to do correctly, and partly because it is even more trouble to do it uniformly.
    One of the neatest schemes I have seen recently is an aluminum block floating in a lead-melting pot with recesses drilled in it for the ctg case necks, which can be left for a given time to anneal.    If I were ever to anneal cases again, this is the way I would do it.

CHRIS
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neat idea, specially if it works reliably.  is this alum block annealer a commerical offering or is it diy?
  

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rgchristensen
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Re: brass annealing
Reply #5 - Oct 7th, 2014 at 6:13pm
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Floating aluminum block:    I have never SEEN one, but suppose that one would have to have the thickness to diameter ratio such that it would not be inclined to tip over.  I would drill a hole in the middle to stick my lead pot thermometer so that it hung down into the lead.   Then holes for the ctg cases around the edge.
     I would get a chunk of aluminum that would just fit into the pot, maybe 1" thick, and drill holes in that.  Not THROUGH, you understand, just cavities to stick the case necks into.  The thermostat on the pot should hold the temp fairly constant, and you can check your lead thermometer against the melting point of pure lead.   With the case heads sticking up in the breeze, you shouldn't have any trouble with drawing the temper in the case webs.
     Notwithstanding all this, I am not even THINKING about setting up to do it.

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rfd
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Re: brass annealing
Reply #6 - Oct 7th, 2014 at 6:24pm
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anyone using templilaq and propane?  or anealrite II?
  

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Hiwall55
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Re: brass annealing
Reply #7 - Oct 7th, 2014 at 6:46pm
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Send your brass to SSShooter he has a annealing machine and for a small fee he will do it right
  
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SSShooter
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Re: brass annealing
Reply #8 - Oct 7th, 2014 at 8:19pm
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Thanks for the props.
The "machine" works well. Use propane torch and Tempilaq.
As Starline states, their cases need annealing if going to be used with BP. If you've all ready annealed them and only shot the cases a few times you are likely working the brass more than it needs. I anneal my cases (~500) at the start of every season and seems to work well. They will be shot 6+ times during the season and don't seem to work-harden.
  

Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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Schuetzendave
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Re: brass annealing
Reply #9 - Oct 7th, 2014 at 8:24pm
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Annealing machine made from an old bread maker.
  
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jfeldman
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Re: brass annealing
Reply #10 - Oct 7th, 2014 at 10:17pm
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May not need annealing.  I use a homemade tool to just barely bell the case mouth so that I can feel it "drag" on the chamber wall as I insert it.

Regards, Joe
  
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rfd
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Re: brass annealing
Reply #11 - Oct 8th, 2014 at 5:33am
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jfeldman wrote on Oct 7th, 2014 at 10:17pm:
May not need annealing.  I use a homemade tool to just barely bell the case mouth so that I can feel it "drag" on the chamber wall as I insert it.

Regards, Joe


does that prevent the need for annealing, or just further delay the need to anneal?
  

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porchdog48
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Re: brass annealing
Reply #12 - Oct 8th, 2014 at 7:32am
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Rid,
  I use tempilaq liquid and propane torch. I put case in a deep well socket mounted on a short extension mounted in a drill. Then spin case mouth in front of flame until tempilaq melts then drop in water. I  cut off a 3/8 extension so it would fit drill. This may not be best way to anneal, but does seem to work OK . 
Dave
  
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rfd
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Re: brass annealing
Reply #13 - Oct 8th, 2014 at 7:54am
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porchdog48 wrote on Oct 8th, 2014 at 7:32am:
Rid,
  I use tempilaq liquid and propane torch. I put case in a deep well socket mounted on a short extension mounted in a drill. Then spin case mouth in front of flame until tempilaq melts then drop in water. I  cut off a 3/8 extension so it would fit drill. This may not be best way to anneal, but does seem to work OK . 
Dave


dave ... 

i've looked over all the annealing processes and machines in detail.  if i had $600 to drop right now, it'd probably be on the bench source vertex, but it's real virtue is in saving time over large batch annealing.  i only need to do 50-100 at a time at best.  

i also like the one-torch spin-the-case concept.  i've got plenty of shiny clean brass in calibers i won't be using to test out, and will look to trial annealing in the kinda manner yer doing - one torch, slowly spin the brass in a deep socket, use tempilaq 750f inside the case mouth and at least initially use a tempilaq 450f stripe down the outside so that i can prove to myself the lower half of the brass and the head aren't getting over heated and over worked.  ... thanx.

one annealing tool looks interesting - the woodchuck den "ring of fire" torch nozzle ...

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Re: brass annealing
Reply #14 - Oct 8th, 2014 at 8:06am
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rfd wrote on Oct 8th, 2014 at 5:33am:
jfeldman wrote on Oct 7th, 2014 at 10:17pm:
May not need annealing.  I use a homemade tool to just barely bell the case mouth so that I can feel it "drag" on the chamber wall as I insert it.

Regards, Joe


does that prevent the need for annealing, or just further delay the need to anneal?

Anything you do to work the brass hastens the need to anneal. Once fire-formed, the least amount of crimp of any type is likely the best.
  

Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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