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Rifles, Reloading, Optics, Equipment
Reloading
To turn or not (necks)
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<blockquote data-quote="nheninge" data-source="post: 277832" data-attributes="member: 13085"><p>I do <u>exactly</u> what woods is proposing for some of my loads. (i.e. neck turning and using standard dies). This works great to control neck tension, and I too shoot for that 0.003 - 0.004 thou neck tension. </p><p> </p><p>The downside is that you wind up working the brass more. Here is what I mean. Every shot fired , the neck expands more (because brass from the neck has been removed) and every time you resize, the die has to size down the neck farther because it expanded farther. This causes additional work hardening of each case every time it is fired and resized and shortens brass life. "No big deal"... IF you anneal the brass every 3-4 firings. </p><p> </p><p>Neck turning is fast and easy and nobody should shy away from it. It is an excellent tool when used properly it WILL help accuracy regardless of the chambering (factory/custom) of your rifle. Neck turning is the only way to ensure uniform neck tension. If a batch of cases has even 0.001 - 0.002 thou difference in neck thickness, then you will have at least 0.001 - 0.002 thou variation in neck tension which has been proven to increase ES and SD at the muzzle! </p><p> </p><p>Here is a link that I think explains it all:</p><p> </p><p><a href="http://blog.sinclairintl.com/2009/02/19/outside-case-neck-turning-for-factory-rifles/" target="_blank">Outside Case Neck Turning for Factory Rifles | The Reloading Press</a></p></blockquote><p></p>
[QUOTE="nheninge, post: 277832, member: 13085"] I do [U]exactly[/U] what woods is proposing for some of my loads. (i.e. neck turning and using standard dies). This works great to control neck tension, and I too shoot for that 0.003 - 0.004 thou neck tension. The downside is that you wind up working the brass more. Here is what I mean. Every shot fired , the neck expands more (because brass from the neck has been removed) and every time you resize, the die has to size down the neck farther because it expanded farther. This causes additional work hardening of each case every time it is fired and resized and shortens brass life. "No big deal"... IF you anneal the brass every 3-4 firings. Neck turning is fast and easy and nobody should shy away from it. It is an excellent tool when used properly it WILL help accuracy regardless of the chambering (factory/custom) of your rifle. Neck turning is the only way to ensure uniform neck tension. If a batch of cases has even 0.001 - 0.002 thou difference in neck thickness, then you will have at least 0.001 - 0.002 thou variation in neck tension which has been proven to increase ES and SD at the muzzle! Here is a link that I think explains it all: [url=http://blog.sinclairintl.com/2009/02/19/outside-case-neck-turning-for-factory-rifles/]Outside Case Neck Turning for Factory Rifles | The Reloading Press[/url] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
To turn or not (necks)
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