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Rifles, Reloading, Optics, Equipment
Reloading
.375 Chey Tac neck clearance
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<blockquote data-quote="LMK" data-source="post: 273646" data-attributes="member: 16267"><p>I am surprised to hear that as I have read numerous articles regardinging the benefits of neck turning. There seem to be a lot of true believers but I increasingly see "theories" that I question about precision shooting. </p><p> </p><p>Tight chamber theory aside, I still think uniform wall thickness makes sense purely from an engineering perspective considering bullet concentricity in the bore, uniformity of brass expansion/sizing, etc.</p><p> </p><p> I am going to go ahead with turning the necks on the brass I have as I am getting an average wall thickness deviation of .0012 to .0015 from one side of the case to the other. I may just stick to SAMMI clearances though. In reality, if the casing eccentricity is not interfering, the bullet should center the round as there is only .0005 clearance in the throat.</p><p> </p><p> </p><p>I appreciate your input Dave and I'll let you know how things turn out.</p></blockquote><p></p>
[QUOTE="LMK, post: 273646, member: 16267"] I am surprised to hear that as I have read numerous articles regardinging the benefits of neck turning. There seem to be a lot of true believers but I increasingly see "theories" that I question about precision shooting. Tight chamber theory aside, I still think uniform wall thickness makes sense purely from an engineering perspective considering bullet concentricity in the bore, uniformity of brass expansion/sizing, etc. I am going to go ahead with turning the necks on the brass I have as I am getting an average wall thickness deviation of .0012 to .0015 from one side of the case to the other. I may just stick to SAMMI clearances though. In reality, if the casing eccentricity is not interfering, the bullet should center the round as there is only .0005 clearance in the throat. I appreciate your input Dave and I'll let you know how things turn out. [/QUOTE]
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.375 Chey Tac neck clearance
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