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Rifles, Reloading, Optics, Equipment
Reloading
When do you turn your necks?
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<blockquote data-quote="J E Custom" data-source="post: 1958936" data-attributes="member: 2736"><p>You will get many different opinions/methods on this topic and to save time I did a search and couldn't find the post I was looking for so I will just post the method I prefer.</p><p></p><p>I only turn case necks on new necks because--- This is your best chance to produce concentric cases</p><p>because the chamber is concentric to the bore and the case has not been fire formed. If you fire form a new case, it will relocate the neck bore buy the amount of the thickness difference. Also if all cases are turned (I prefer to measure the thickness difference and turn just enough to clean all the cases up. they will not only all expand the same, the chamber can true them up the first firing and better results will be achieved during load development.</p><p></p><p>To get quality/consistent neck thickness I also recommend using a sizing mandrel first to better fit the turning mandrel. this combination give me the best fit and consistent thickness. The next step is to size the neck only for the bullet grip I want for consistent chamber pressures. This sounds like a lot of trouble, but in my opinion and experience, you only have one time to truly true up the cases and first has saved me many loading's for accuracy and in the long run, money.</p><p></p><p>Fully prepped cases before initial firings will give you the best way to have consistent cases that are important for consistent accuracy. How much accuracy depends on many things including shooter ability. </p><p></p><p>I prefer eliminating any differences that I can, to minimize shooter error by making everything as consistent as possible, and not just depending on my abilities to overcome them. I have never been able to produce the same accuracy with even the same loads, but the consistency/average of what I can do, has always been better if I did everything I could to make things consistent in the first place.</p><p></p><p>Consistent neck thickness is always better for accuracy, Its how you get there that Is the question.</p><p></p><p>Just my opinion and method</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1958936, member: 2736"] You will get many different opinions/methods on this topic and to save time I did a search and couldn't find the post I was looking for so I will just post the method I prefer. I only turn case necks on new necks because--- This is your best chance to produce concentric cases because the chamber is concentric to the bore and the case has not been fire formed. If you fire form a new case, it will relocate the neck bore buy the amount of the thickness difference. Also if all cases are turned (I prefer to measure the thickness difference and turn just enough to clean all the cases up. they will not only all expand the same, the chamber can true them up the first firing and better results will be achieved during load development. To get quality/consistent neck thickness I also recommend using a sizing mandrel first to better fit the turning mandrel. this combination give me the best fit and consistent thickness. The next step is to size the neck only for the bullet grip I want for consistent chamber pressures. This sounds like a lot of trouble, but in my opinion and experience, you only have one time to truly true up the cases and first has saved me many loading's for accuracy and in the long run, money. Fully prepped cases before initial firings will give you the best way to have consistent cases that are important for consistent accuracy. How much accuracy depends on many things including shooter ability. I prefer eliminating any differences that I can, to minimize shooter error by making everything as consistent as possible, and not just depending on my abilities to overcome them. I have never been able to produce the same accuracy with even the same loads, but the consistency/average of what I can do, has always been better if I did everything I could to make things consistent in the first place. Consistent neck thickness is always better for accuracy, Its how you get there that Is the question. Just my opinion and method J E CUSTOM [/QUOTE]
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Reloading
When do you turn your necks?
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