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Rifles, Reloading, Optics, Equipment
Reloading
What is a good set up for case trimming & neck turning
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<blockquote data-quote="Gene" data-source="post: 515948" data-attributes="member: 7402"><p>Either you have a neck turner that will adjust only a thousandaths at a time, or you don't understand the turning process. Example: Say a .308 case has a neck wall thickness of .014". Bear this in mind that that is the thickness only of the neck wall, so that if you remove .001", the full 360 degree circumference will be reduced double that, or .002". If you remove .008", it would double that, or completely eliminate any evidence of the neck!!!</p><p></p><p></p><p>The K&M will remove .0002" (two ten thousandaths) from the neck surface at a time, reducing the total neck diameter .0004" with each turn. You need a neck wall thickness micrometer or tubing micrometer to measure this. </p><p></p><p>You can confirm this by looking at the Sinclair NT4000 neck turner. The cutter adjusts to .0002" and .00025" per click. The K&M is similar.</p></blockquote><p></p>
[QUOTE="Gene, post: 515948, member: 7402"] Either you have a neck turner that will adjust only a thousandaths at a time, or you don't understand the turning process. Example: Say a .308 case has a neck wall thickness of .014". Bear this in mind that that is the thickness only of the neck wall, so that if you remove .001", the full 360 degree circumference will be reduced double that, or .002". If you remove .008", it would double that, or completely eliminate any evidence of the neck!!! The K&M will remove .0002" (two ten thousandaths) from the neck surface at a time, reducing the total neck diameter .0004" with each turn. You need a neck wall thickness micrometer or tubing micrometer to measure this. You can confirm this by looking at the Sinclair NT4000 neck turner. The cutter adjusts to .0002" and .00025" per click. The K&M is similar. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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What is a good set up for case trimming & neck turning
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