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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning...min neck thickness
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<blockquote data-quote="J E Custom" data-source="post: 1937811" data-attributes="member: 2736"><p>Sometimes we, as experienced re loaders forget that many people don't turn the necks and just load cases as is. The differences in neck clearance becomes crucial when firing cases with different case neck thicknesses because if you get a case that has "No" room to expand, high pressure normally follows. Unless you turn every neck to allow for some expansion in that chamber, you can definitely</p><p>experience this condition. So .003+ will normally take care of this issue on unturned case necks.</p><p></p><p>If you can turn every neck to the exact thickness for your chamber you wouldn't need over .001 thousandths to release the bullet cleanly, But there are many other considerations that need to be addressed when going with such close tolerances in my opinion and the decision is yours on how much clearance you want. </p><p></p><p>The main reason for turning is uniform neck wall thickness, and as long as you have some clearance,</p><p>you will be ok. If you have a special neck diameter, my recommendation is to turn every neck until they all clean up. as far as the actual neck wall thickness, I an not sure that there is a minimum thickness as long as you have enough to apply bullet grip. I have always stopped at .010 thousandths neck wall as my minimum.</p><p></p><p>Standards are there for safety reasons and as long as you know the risk, you can do what you want but you are own your own.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1937811, member: 2736"] Sometimes we, as experienced re loaders forget that many people don't turn the necks and just load cases as is. The differences in neck clearance becomes crucial when firing cases with different case neck thicknesses because if you get a case that has "No" room to expand, high pressure normally follows. Unless you turn every neck to allow for some expansion in that chamber, you can definitely experience this condition. So .003+ will normally take care of this issue on unturned case necks. If you can turn every neck to the exact thickness for your chamber you wouldn't need over .001 thousandths to release the bullet cleanly, But there are many other considerations that need to be addressed when going with such close tolerances in my opinion and the decision is yours on how much clearance you want. The main reason for turning is uniform neck wall thickness, and as long as you have some clearance, you will be ok. If you have a special neck diameter, my recommendation is to turn every neck until they all clean up. as far as the actual neck wall thickness, I an not sure that there is a minimum thickness as long as you have enough to apply bullet grip. I have always stopped at .010 thousandths neck wall as my minimum. Standards are there for safety reasons and as long as you know the risk, you can do what you want but you are own your own. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning...min neck thickness
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