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Rifles, Reloading, Optics, Equipment
Reloading
Over annealing?
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<blockquote data-quote="biff&#039;s reloading" data-source="post: 2437505" data-attributes="member: 6078"><p>I dont know... I've annealed the hell out of lots of brass, and never had an issue. Bump it in a collet die to .002 and seat the bullet. Its very difficult to stop the annealing process at a repeatable level other than dead brass, which is the goal of annealing. To make it all the same again, plus renew ductility. Read this article.</p><p> <a href="https://bisonballistics.com/articles/the-science-of-cartridge-brass-annealing" target="_blank">https://bisonballistics.com/articles/the-science-of-cartridge-brass-annealing</a></p><p></p><p>Annealed is annealed. The instant you allow the molecules a chance to move, they snap right back to form. Theres no scientific term "over-annealed". There is "oxidized". and If you kept it too hot for long enough, the grain size would be high, and eventually cause some dissemination of the metals.</p><p></p><p>unless you are burning holes in your brass with the oxy/acetylene torch, 2 passes through a die and itll be work hardened back up again.</p><p></p><p>In reality, the problem isnt the metallurgy of the neck, but that you annealed too far down the case. You cant get that back because the lower Half of the case doesn't get worked.</p><p></p><p>I anneal With a hot torch. I point it at the case lengthwise instead of at the side of the neck, with the tip of the flame at the edge of the case mouth. 3 seconds and The mouth starts to dull, 4-5 seconds and the neck is done. Drop it in water. I use the "distilled" water from the dehumidifier.</p><p></p><p>[ATTACH=full]339807[/ATTACH]</p></blockquote><p></p>
[QUOTE="biff's reloading, post: 2437505, member: 6078"] I dont know... I've annealed the hell out of lots of brass, and never had an issue. Bump it in a collet die to .002 and seat the bullet. Its very difficult to stop the annealing process at a repeatable level other than dead brass, which is the goal of annealing. To make it all the same again, plus renew ductility. Read this article. [URL]https://bisonballistics.com/articles/the-science-of-cartridge-brass-annealing[/URL] Annealed is annealed. The instant you allow the molecules a chance to move, they snap right back to form. Theres no scientific term "over-annealed". There is "oxidized". and If you kept it too hot for long enough, the grain size would be high, and eventually cause some dissemination of the metals. unless you are burning holes in your brass with the oxy/acetylene torch, 2 passes through a die and itll be work hardened back up again. In reality, the problem isnt the metallurgy of the neck, but that you annealed too far down the case. You cant get that back because the lower Half of the case doesn't get worked. I anneal With a hot torch. I point it at the case lengthwise instead of at the side of the neck, with the tip of the flame at the edge of the case mouth. 3 seconds and The mouth starts to dull, 4-5 seconds and the neck is done. Drop it in water. I use the "distilled" water from the dehumidifier. [ATTACH type="full" alt="+zv0caAcOz8AAAAASUVORK5CYII=.png"]339807[/ATTACH] [/QUOTE]
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Over annealing?
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