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Do you anneal your cases?

 
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  #1  
Old 10-22-2010, 02:20 AM
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Do you anneal your cases?

Do you anneal your cases fefore loading?
Do you use a water quench?
If you do anneal your cases tell us your procedure.
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Old 10-22-2010, 05:40 AM
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re: Do you anneal your cases?

I bought an annealing machine for my f class rifle brass. I am going to anneal every firing or every other firing. If you do anneal make sure the necks are free of lube. If not, it will leave a grey film on the necks. I would definetly get some of the tempilaq temperature sensitive liguid. I use 650 F on the inside of the neck and 400 on the case body. The brass will need to be sized after annealing because the annealing will slightly stress relieve the brass. My annealing machine does not use a water quench.
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Old 10-22-2010, 06:14 AM
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re: Do you anneal your cases?

You might try a 3sec search:
http://www.longrangehunting.com/foru...earchid=917140
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Old 10-22-2010, 07:37 AM
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re: Do you anneal your cases?

The Art and Science of Annealing

fyio
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Old 10-22-2010, 08:19 AM
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re: Do you anneal your cases?

I use the water & torch method of old every few firings, before resizing the brass.

Only on the expensive brass the common stuff I don't bother.
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Old 10-22-2010, 08:27 AM
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re: Do you anneal your cases?

Yes, I anneal. I never used to and learned very quickly that it was a mistake not doing it for all those years. I do not quench, it is not necessary, and it just adds extra time because they have to dry.

I started using an indicator but stopped after I timed the process in seconds. Now I just use a timer and watch the seconds. I now anneal after each shot as this is the most uniform way to do brass prep. I size prior to annealing. I don't honestly don't know how much effect the stress relieved brass has on accuracy as compared to sizing after annealing.

In either case, I'm guessing that the neck tension would be consistent so long as the process is as well. I can tell you that I have had no problems getting precision and accuracy that has exceeded my expectations with the process I use which is annealing as the last step before priming and powder charging.

All of the brass I use: Winchester, Federal, Lapua, Remington, and Norma all take from 6 to 7 seconds depending on the caliber. For example, it takes right at 7 seconds for the 7mm RUM cases (for my 270 AM), and 6 seconds for the Winchester 270 cases. I don't believe there'd be any damage to any of them, over or under annealing if I just stuck with a flat 7 seconds on all.

I use one torch and it is not MAPP. I think that torch gets too hot too quick. I think annealing should be a bit slower for more uniformity. Just a guess, though.
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Old 10-22-2010, 04:33 PM
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Re: Do you anneal your cases?

I tumble then anneal then resize. I anneal every 2nd or 3rd reload, just depends on whether I want to do it or not.

I use an appropriate sized socket in a cordless drill to hold the case as I spin it over a propane torch. I used to go by time alone (6 to 10 seconds depending on the brass), but now I prefer observing the color change in the case neck and shoulder area and take it out of the flame when the color change proceeds down the body about 1/8" or so past the shoulder body junction. When done, I dump the case onto a wet towel.
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