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Redding Type S die
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<blockquote data-quote="Barrelnut" data-source="post: 1095865" data-attributes="member: 74902"><p>I don't think the reasoning for the bushing type dies is to reduce runout. It is more to avoid overworking the brass in the neck and to allow for adjustment of neck tension.</p><p></p><p>Sometimes runout can be caused by the expander ball coming back up thru neck when the cartridge is pulled back out of the die. This can be true, especially necks thickness is not very consistent around the neck. Neck turning could help this. Runout can also be caused by the seating die. Need to figure out which die maybe adding tot he runout by checking runout on the case before seating the bullet.</p><p></p><p>I use Redding bushing dies and my runout is more like .001 - .002. I think .004 might be a little excessive. Can also vary a bit by whether you are sizing short action or long action brass. Seems short action cartridges a little less prone to excessive runout.</p></blockquote><p></p>
[QUOTE="Barrelnut, post: 1095865, member: 74902"] I don't think the reasoning for the bushing type dies is to reduce runout. It is more to avoid overworking the brass in the neck and to allow for adjustment of neck tension. Sometimes runout can be caused by the expander ball coming back up thru neck when the cartridge is pulled back out of the die. This can be true, especially necks thickness is not very consistent around the neck. Neck turning could help this. Runout can also be caused by the seating die. Need to figure out which die maybe adding tot he runout by checking runout on the case before seating the bullet. I use Redding bushing dies and my runout is more like .001 - .002. I think .004 might be a little excessive. Can also vary a bit by whether you are sizing short action or long action brass. Seems short action cartridges a little less prone to excessive runout. [/QUOTE]
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Redding Type S die
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