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Rifles, Reloading, Optics, Equipment
Reloading
Expander die question
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<blockquote data-quote="MagnumManiac" data-source="post: 2108147" data-attributes="member: 10755"><p>I found crimping detrimental to accuracy.</p><p>I also run .0015" neck tension in ONE of my 300's, this is where it shoots the best, it's a Kimber 8400 Classic with select French walnut.</p><p>My other 300WM rifles run .003"-.005" neck tension.</p><p>I use honed neck dies and modified or custom expanders that only move the neck .002" , max movement for me is .003" in any direction and less if I can get away with it. My final neck size is done with a mandrel, it is set so that it moves the neck .0015" and typically gets .001" spring back.</p><p>I also skim turn my brass necks, but on a hunting rifle any gains doing this may never be seen on target. My precision rifles do see a difference on target.</p><p>I have to say that my pure stock hunting rifles perform fine without turned necks and precision brass prep techniques. I anneal those every other firing, but if I'm hunting trophy deer, I use prepped NEW brass to hunt with, it has always been more accurate in my stock rifles; Win Mosel 70 EW, Kimber 8400, Kimber Super America & a Rem 700 LR. All shoot new brass better than fire formed.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2108147, member: 10755"] I found crimping detrimental to accuracy. I also run .0015” neck tension in ONE of my 300’s, this is where it shoots the best, it’s a Kimber 8400 Classic with select French walnut. My other 300WM rifles run .003”-.005” neck tension. I use honed neck dies and modified or custom expanders that only move the neck .002” , max movement for me is .003” in any direction and less if I can get away with it. My final neck size is done with a mandrel, it is set so that it moves the neck .0015” and typically gets .001” spring back. I also skim turn my brass necks, but on a hunting rifle any gains doing this may never be seen on target. My precision rifles do see a difference on target. I have to say that my pure stock hunting rifles perform fine without turned necks and precision brass prep techniques. I anneal those every other firing, but if I’m hunting trophy deer, I use prepped NEW brass to hunt with, it has always been more accurate in my stock rifles; Win Mosel 70 EW, Kimber 8400, Kimber Super America & a Rem 700 LR. All shoot new brass better than fire formed. Cheers. [/QUOTE]
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Expander die question
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