Quick annealing experiment

Well @gimp for a very unscientific experiment it certainly proves that annealing works on extending case life. As always it seems a popular but polarising subject.
I've never run a case to destruction like that, but have always felt justified by annealing over not annealing.

I anneal and find I get way fewer split necks now. I retire my rounds after 10 firings. But looking at the ones I have retired, most don't show signs of fatigue. I check the insides for separation with a bent wire. A few are getting a bit lose in the primer pocket. wondering if I load some with ginex primers as they are tighter fitting and try for another few firings? Anyone done this? Usually primer pocket expansion is caused by hot loads, brass quality or both. Don't think my loads are hot, by the velocity and the amount of loads the cases have had already had. Guess the expansion is caused by the amount of loads and the continued pressure.

Running a 7 SAUM 180gr at 2980 fps....necks turned to 0.012" and annealed every second firing ....still looking pristine after 22 x fired. Not annealing is not even a consideration with the price of SAUM brass

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Originally Posted by r87mm

I anneal and find I get way fewer split necks now. I retire my rounds after 10 firings. But looking at the ones I have retired, most don't show signs of fatigue. I check the insides for separation with a bent wire. A few are getting a bit lose in the primer pocket. wondering if I load some with ginex primers as they are tighter fitting and try for another few firings? Anyone done this? Usually primer pocket expansion is caused by hot loads, brass quality or both. Don't think my loads are hot, by the velocity and the amount of loads the cases have had already had. Guess the expansion is caused by the amount of loads and the continued pressure.

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The old trick is a dab of nail varnish on the loose primers after you have seated them. I guess probably not the right audience on this thread to suggest it to :)

Last time I used the granddaughter's glittery pink stuff. Looked quite classy.

@gimp what were your anneal times (you mentioned two different amounts).

2.1 and 2.3 seconds.

2.1 was dull red in a darkened room, 2.3 a little brighter.

I think 2.3 softened the shoulder too much and you can see that in the distortion of the case.

Fair enough, yes its a bit of a learning curve. I havent invented an Aztec feature yet. Ramping from a 5.56 neck to a 6mm one and back is going to be hard on the shoulder.
More so than normal sizing, but obviously a good test for longevity.

I've got enough brass to sacrifice some in experiments

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Originally Posted by Tahr

The old trick is a dab of nail varnish on the loose primers after you have seated them. I guess probably not the right audience on this thread to suggest it to :)

Last time I used the granddaughter's glittery pink stuff. Looked quite classy.

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How do you get best velocity with a 22CM... when its pink.

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Originally Posted by gimp

I own an induction annealer.



What incentives do you think a person selling a $3000 annealing machine might have to present a less-than-objective viewpoint?

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Which aspects or findings in the book were not objective?

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Originally Posted by TeRei

How do you get best velocity with a 22CM... when its pink.

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Mention there's a shoe sale on

Quote:

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Originally Posted by Tahr

The old trick is a dab of nail varnish on the loose primers after you have seated them. I guess probably not the right audience on this thread to suggest it to :)

Last time I used the granddaughter's glittery pink stuff. Looked quite classy.

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That is a awesome trick

Have you tried annealing the case bottom to treat the primer pocket?

Next experiment lined up!

Good work, it is convincing that it makes a difference.

Cheers.

Ive never had a split neck the whole time I've reloaded (started 2012). I do a broad range for myself and mates but the only thing that ever signals the end of any case is that primer pocket. Ind annealing is a no brainer imo.