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Rifles, Reloading, Optics, Equipment
Reloading
Resizing, before or after annealing
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<blockquote data-quote="MagnumManiac" data-source="post: 2420218" data-attributes="member: 10755"><p>The sizing process after firing moves the brass the most. This is why I anneal before forming and after firing before sizing because this is where the brass is moved in every direction.</p><p>The amount of movement to work harden a piece of brass is quite a lot after it has been annealed. If you fire a case numerous times with minimal sizing, it could take 10 strokes of firing and sizing to work harden the brass enough that it becomes difficult to re-size. But we often never do this. I have a match chambered 6.5x47 Lapua that I shot one piece of Lapua small primer brass in 20 times, the brass never moves more then .003" in any direction. That case has NOT been annealed and may never need it.</p><p>It is solely governed by how sloppy the chamber is, the die dimensions and the stability of the brass.</p><p>To minimise brass movement, you need a plan. Mine is absolute minimum die specs, honed necks and altered expanders and a final size with a mandrel. Absolutely no chamber neck clearance larger than .003" if it can be helped.</p><p>Body dies are invaluable if you can get them at minimum spec.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2420218, member: 10755"] The sizing process after firing moves the brass the most. This is why I anneal before forming and after firing before sizing because this is where the brass is moved in every direction. The amount of movement to work harden a piece of brass is quite a lot after it has been annealed. If you fire a case numerous times with minimal sizing, it could take 10 strokes of firing and sizing to work harden the brass enough that it becomes difficult to re-size. But we often never do this. I have a match chambered 6.5x47 Lapua that I shot one piece of Lapua small primer brass in 20 times, the brass never moves more then .003” in any direction. That case has NOT been annealed and may never need it. It is solely governed by how sloppy the chamber is, the die dimensions and the stability of the brass. To minimise brass movement, you need a plan. Mine is absolute minimum die specs, honed necks and altered expanders and a final size with a mandrel. Absolutely no chamber neck clearance larger than .003” if it can be helped. Body dies are invaluable if you can get them at minimum spec. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Resizing, before or after annealing
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