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Rifles, Reloading, Optics, Equipment
Reloading
Sizing consistency after annealing
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<blockquote data-quote="PddPdd" data-source="post: 2877781" data-attributes="member: 111799"><p>JustMe2,</p><p></p><p>I sincerely appreciate your concern.</p><p></p><p>The engineers who designed the AMP annealer, which I use, have shown in hardness testing that as long as you keep the annealing settings (time & heat) the same, repeat annealing does not change the brass hardness or grain structure of the brass.</p><p></p><p>Here is the video showing this: [MEDIA=youtube]D_aukSJwUXA[/MEDIA]</p><p></p><p>The reason for annealing is to get an accurate, consistent hardness baseline for resizing with the same amount of work hardening occurring on every piece of brass when you re-size it.</p><p></p><p>The repeated working of the press is similar to holding the brass in the sizing die longer to get that last .0005" to .001" of sizing needed to bump the shoulder for smooth bolt operation. Brass hardening occurs when you deform it. The more you deform it past it's elastic limit, the more work hardening you induce.</p></blockquote><p></p>
[QUOTE="PddPdd, post: 2877781, member: 111799"] JustMe2, I sincerely appreciate your concern. The engineers who designed the AMP annealer, which I use, have shown in hardness testing that as long as you keep the annealing settings (time & heat) the same, repeat annealing does not change the brass hardness or grain structure of the brass. Here is the video showing this: [MEDIA=youtube]D_aukSJwUXA[/MEDIA] The reason for annealing is to get an accurate, consistent hardness baseline for resizing with the same amount of work hardening occurring on every piece of brass when you re-size it. The repeated working of the press is similar to holding the brass in the sizing die longer to get that last .0005" to .001" of sizing needed to bump the shoulder for smooth bolt operation. Brass hardening occurs when you deform it. The more you deform it past it's elastic limit, the more work hardening you induce. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Sizing consistency after annealing
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