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Rifles, Reloading, Optics, Equipment
Equipment Discussions
custom FL dies for factory rifles
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<blockquote data-quote="nksmfamjp" data-source="post: 2506763" data-attributes="member: 1951"><p>I think I am misunderstanding you completely.</p><p></p><p></p><p>yes</p><p></p><p>The neck area of fl sizing dies is fitted either by honing to a dimension you specify or by a bushing you choose. Depends on die model which is done.</p><p></p><p>You are stuck with your chamber until you rebarrel, unless you want it enlarged with a neck reamer. I don't think you want this based on the words you have posted.</p><p>My guess is the person you are speaking with is following the fitted properly model where a fired case is just large enough a bullet slides in & out. Also, it only needs sized down ~0.005" (on the diameter) to get 0.004" neck tension. Then some kind of +0.001" expander to iron out the neck inside and final set neck tension.</p><p>Factory rifles never do this because the fired neck diameter is usually like 0.01" over loaded round diameter.</p><p></p><p></p><p>good</p><p></p><p>If you are using a mandrel, the neck id has to start smaller than your desired id. That is all.</p><p></p><p>Making the case fit the chamber is all about neck thickness. Ideally in a hunting rig, you want the loaded round od to be 0.003" under chamber diameter.</p></blockquote><p></p>
[QUOTE="nksmfamjp, post: 2506763, member: 1951"] I think I am misunderstanding you completely. yes The neck area of fl sizing dies is fitted either by honing to a dimension you specify or by a bushing you choose. Depends on die model which is done. You are stuck with your chamber until you rebarrel, unless you want it enlarged with a neck reamer. I don’t think you want this based on the words you have posted. My guess is the person you are speaking with is following the fitted properly model where a fired case is just large enough a bullet slides in & out. Also, it only needs sized down ~0.005” (on the diameter) to get 0.004” neck tension. Then some kind of +0.001” expander to iron out the neck inside and final set neck tension. Factory rifles never do this because the fired neck diameter is usually like 0.01” over loaded round diameter. good If you are using a mandrel, the neck id has to start smaller than your desired id. That is all. Making the case fit the chamber is all about neck thickness. Ideally in a hunting rig, you want the loaded round od to be 0.003” under chamber diameter. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Equipment Discussions
custom FL dies for factory rifles
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