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Annealing brass

 
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  #1  
Old 08-10-2009, 07:02 PM
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Annealing brass

I've been shooting Lapua brass in a custom .308 win. So far I have reloaded the brass 11 times without any problem. I am using a set of Redding type S bushing FL dies. Primer pockets are still good and brass has only been trimmed a couple of times.

At this point is it necessary to anneal the necks? Will I loose neck tension consistency if I don't? I've never annealed any brass before because I usually chuck it out before that became necessary. However, this .308 Lapua brass looks like it could keep going and going and going.
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Old 08-10-2009, 07:34 PM
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Re: Annealing brass

VH,
I would anneal the brass. I have found I get more consistant neck tension with annealing the brass more often. In fact, on my longrange loads I have started annealing after every firing. It does not take that long.
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Old 08-12-2009, 03:13 PM
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Re: Annealing brass

Annealing brass is definitely not hard to do......

Annealing Cases
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Old 08-14-2009, 11:12 AM
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Re: Annealing brass

Quote:
Originally Posted by Varmint Hunter View Post
I've been shooting Lapua brass in a custom .308 win. So far I have reloaded the brass 11 times without any problem. I am using a set of Redding type S bushing FL dies. Primer pockets are still good and brass has only been trimmed a couple of times.

At this point is it necessary to anneal the necks? Will I loose neck tension consistency if I don't? I've never annealed any brass before because I usually chuck it out before that became necessary. However, this .308 Lapua brass looks like it could keep going and going and going.

There are many ways to anneal brass and without anything special I use a rectangular cake
pan to place the brass in and fill with water it to the level you want the annealing to stop.

Next I stand the cases up in the water about 2 inches apart . then take a cheep propane
torch and point it down on one case at a time and heat until you see it change colors and
with a welding rod or pencil knock it over in the water away from the rest of the cases.

When you have done all of them just remove the annealed brass and start over on the rest.

What I like about doing it this way is little or no set up time and you can do a few or many.

Experiment with a few and you will be surprised at how easy it is and the results you get.

There are some threads that show different ways of doing it (I think BB has a video) but this
is a very easy way to get started and then if you want production go with the production
methods.

J E CUSTOM
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Old 08-15-2009, 02:04 AM
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Re: Annealing brass

Annealing is fun and there is always a first time for everything.

I tried my best to keep away from annealing but after some

30+ years of reloading I had to do it. It's fun! Just don't drop

the flame and burn your house because mama will kill you!
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Old 08-15-2009, 12:10 PM
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Re: Annealing brass

J.E., is it important to heat all sides of the case and if so how do you do it with this method?
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Old 08-15-2009, 02:07 PM
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Re: Annealing brass

I've been annealing for decades, find it more of an art than a science. I've tried most everthing available except the temp sensitive paints and markers. Started out doing it really bad and have progressed to where I'm quite happy with the results.

My early efforts followed the "heat necks until they are a bright red and tip them over in a pan of water" method. Bad way, at least for me; red hot is FAR TOO HOT and I couldn't do it evenly. Too much heat damages the brass alloy and leaves the necks dead soft, with very little real bullet tension/grip.

Finally got a little smarter; Tried hand holding the cases at the head in my fingers while heating the necks. Aimed the inner blue tip at the junciton of neck to shoulder while turning the cases for an even heat treatment. Safety comes in that when they get too hot to hold they are immediately dropped into a water bucket. That was a better method but some torches aren't quite hot enough to get the necks up to the right temp before my fingers smoked!

Finally, I lathe turned an aluminum case holder device that looks a lot like Hornady's annealing holder. Mine has a small, 1/4" diameter, holding stem about 3" long on one end that's easy to hold and spin in my fingers. The working end, the fat end, is about 3/4" by 2" and bored 1/2" by 1 1/2" deep. I can drop most any case heads (escept magnums) into. I can easily hand hold/spin it at a slant with a case in the torch flame for even heating and then drop it into a water bucket when I see the shoulder-body junction turn the "right" shade of light blue - it's a learned thing. That method works well and it's the only way I would suggest today.

You could easily duplicate my case holder with a 9/16" or 1/2" deep wall socket (ratchet wrench) and a short socket extender.

I like standard propane torch fuel, MAPP gas gets much to hot to fast for me to accurately judge shoulder colors.

Last edited by boomtube; 08-15-2009 at 02:17 PM.
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