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Rifles, Reloading, Optics, Equipment
Reloading
Variable seating pressure?
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<blockquote data-quote="243winxb" data-source="post: 1248290" data-attributes="member: 97793"><p><strong>Variable seating pressure? DONUT?</strong></p><p></p><p><a href="http://www.6mmbr.com/243win.html" target="_blank">.243 Win + .243 AI Cartridge Guide</a></p><p></p><p>In the drawing , there is .004" difference in where the neck starts. </p><p></p><p>Neck turning may be needed again after fire forming? If part of the shoulder moved into the neck area?</p><p></p><p>A donut , with a tight neck chamber, may produce hard chambering of a round. This may produce high dangerous pressure.</p><p></p><p>I had to go to a .001" smaller bushing after a few firings , with my neck turned 243 win brass .</p></blockquote><p></p>
[QUOTE="243winxb, post: 1248290, member: 97793"] [b]Variable seating pressure? DONUT?[/b] [url=http://www.6mmbr.com/243win.html].243 Win + .243 AI Cartridge Guide[/url] In the drawing , there is .004" difference in where the neck starts. Neck turning may be needed again after fire forming? If part of the shoulder moved into the neck area? A donut , with a tight neck chamber, may produce hard chambering of a round. This may produce high dangerous pressure. I had to go to a .001" smaller bushing after a few firings , with my neck turned 243 win brass . [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Variable seating pressure?
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