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Rifles, Reloading, Optics, Equipment
Reloading
turning necks
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<blockquote data-quote="dok7mm" data-source="post: 1166637" data-attributes="member: 90080"><p>Just measure the diameter of a freshly fired neck from your chamber and add .001", it will be close. The problem comes in when there is more than .005" difference between this measurement and and the bushing size you are using (usually .001-.002" less than your loaded neck measurement). If you are reducing your neck diameter (say .007-.010" , common with factory chambers) you can end up with quite inconsistent neck tension, if reduction is made with one bushing size. You can remedy this by stepping down the neck with two bushings, one that takes down neck 1/2 way and another for your final target neck dia. If there is a great difference between your loaded neck and chamber neck, it may NOT be worth it to neck turn your brass OR you could just do a skim turn to just knock down the thicker portion of your brass. Regardless, you need a ball micrometer to check your neck wall thickness, IF you decide to turn necks. Good Luck to you.</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1166637, member: 90080"] Just measure the diameter of a freshly fired neck from your chamber and add .001", it will be close. The problem comes in when there is more than .005" difference between this measurement and and the bushing size you are using (usually .001-.002" less than your loaded neck measurement). If you are reducing your neck diameter (say .007-.010" , common with factory chambers) you can end up with quite inconsistent neck tension, if reduction is made with one bushing size. You can remedy this by stepping down the neck with two bushings, one that takes down neck 1/2 way and another for your final target neck dia. If there is a great difference between your loaded neck and chamber neck, it may NOT be worth it to neck turn your brass OR you could just do a skim turn to just knock down the thicker portion of your brass. Regardless, you need a ball micrometer to check your neck wall thickness, IF you decide to turn necks. Good Luck to you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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turning necks
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