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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Neck Clearance
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<blockquote data-quote="Cybra" data-source="post: 24043" data-attributes="member: 936"><p>Bounty Hunter</p><p></p><p>I was going to e-mail you, personally, but it refuses to give me an addy; guess it doesn't trust me... <img src="http://images/icons/wink.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>It sounds like we are on similar endeavors. I have read that a 45 degree shoulder is optimum with certain cases, with the possible exception of that design that McPherson and some other fellow are trying [I can't recall the specified name of the shoulder configuration, but I think I read about it on here. The case is the 6mm Thermos Bottle, I think.] What I am probably going to do is push the shoulder on the necked-up .220 Russians I have back until I get either a 40 or 45 degree angle &lt;still debating&gt;, which should lengthen the neck. from there, I may keep the long neck, who knows. I won't aid accuracy, but it might aid throat life a slight amount. The heaviest bullet I will shoot, and the primary bullet, will be Berger's 95VLD.</p><p>Currently I'm running a Sinclair neck turner, with mandrels I turned myself. They seem to work nice; I think the reason I'm get one to two ten-thousandths variation from one box of 100 to another is mostly due to either a.) mandrel gets warm, b.) lube build on mandrel, but I doubt it, or maybe c.) where it has something to do with how they were necked up [I use a two-step process, but just recently adjusted the expander so it was more "loose" and could self-center on its own. Seems to have helped.] Anyhow, thank you for replying as well. </p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="Cybra, post: 24043, member: 936"] Bounty Hunter I was going to e-mail you, personally, but it refuses to give me an addy; guess it doesn't trust me... [img]images/icons/wink.gif[/img] It sounds like we are on similar endeavors. I have read that a 45 degree shoulder is optimum with certain cases, with the possible exception of that design that McPherson and some other fellow are trying [I can't recall the specified name of the shoulder configuration, but I think I read about it on here. The case is the 6mm Thermos Bottle, I think.] What I am probably going to do is push the shoulder on the necked-up .220 Russians I have back until I get either a 40 or 45 degree angle <still debating>, which should lengthen the neck. from there, I may keep the long neck, who knows. I won't aid accuracy, but it might aid throat life a slight amount. The heaviest bullet I will shoot, and the primary bullet, will be Berger's 95VLD. Currently I'm running a Sinclair neck turner, with mandrels I turned myself. They seem to work nice; I think the reason I'm get one to two ten-thousandths variation from one box of 100 to another is mostly due to either a.) mandrel gets warm, b.) lube build on mandrel, but I doubt it, or maybe c.) where it has something to do with how they were necked up [I use a two-step process, but just recently adjusted the expander so it was more "loose" and could self-center on its own. Seems to have helped.] Anyhow, thank you for replying as well. Dave [/QUOTE]
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