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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
chamber size, brass, neck turning and clearances
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<blockquote data-quote="Bart B" data-source="post: 699525" data-attributes="member: 5302"><p>If the resized cases headspacing on their shoulders have their necks well centered on the case shoulder and reasonably straight, it doesn't matter how much clearance there is between the case neck and chamber neck. The necks will center perfectly in the bore when the case gets driven hard into the chamber shoulder by firing pin impact.</p><p></p><p>Using full length bushing dies may well produce the best resized fired cases. Use a bushing diameter about 2 thousandths smalller than a loaded round neck diameter. Set the fired case shoulder back about 2 thousandths. Excellent accuracy with both the '06 and 7RM has happened with these dies and techniques. The only other tool that helps belted cases is the collet die from <a href="http://www.larrywillis.com" target="_blank">Innovative Technologies - Reloading Equipment</a> that sizes the fired case body all the way to the belt; conventional dies don't.</p></blockquote><p></p>
[QUOTE="Bart B, post: 699525, member: 5302"] If the resized cases headspacing on their shoulders have their necks well centered on the case shoulder and reasonably straight, it doesn't matter how much clearance there is between the case neck and chamber neck. The necks will center perfectly in the bore when the case gets driven hard into the chamber shoulder by firing pin impact. Using full length bushing dies may well produce the best resized fired cases. Use a bushing diameter about 2 thousandths smalller than a loaded round neck diameter. Set the fired case shoulder back about 2 thousandths. Excellent accuracy with both the '06 and 7RM has happened with these dies and techniques. The only other tool that helps belted cases is the collet die from [url=http://www.larrywillis.com]Innovative Technologies - Reloading Equipment[/url] that sizes the fired case body all the way to the belt; conventional dies don't. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
chamber size, brass, neck turning and clearances
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