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Rifles, Reloading, Optics, Equipment
Reloading
Fire forming question
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<blockquote data-quote="MagnumManiac" data-source="post: 1525701" data-attributes="member: 10755"><p>I don't size until the 3rd firing or when the case has 'feel' as the bolt is closed with the firing pin assembly is removed.</p><p>In my experience with full power loads, 3 firings has filled the chamber sufficiently.</p><p>Then, depending on use, I measure the head to datum and size until a case is .001" less (comp rifles) or .002" less (hunting rifles). This, with spring back, gives me a chamber sized case or a little less, and a case .001" less than chamber size.</p><p>I have also used .002" bump, sizing .003" to allow for spring back.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1525701, member: 10755"] I don’t size until the 3rd firing or when the case has ‘feel’ as the bolt is closed with the firing pin assembly is removed. In my experience with full power loads, 3 firings has filled the chamber sufficiently. Then, depending on use, I measure the head to datum and size until a case is .001” less (comp rifles) or .002” less (hunting rifles). This, with spring back, gives me a chamber sized case or a little less, and a case .001” less than chamber size. I have also used .002” bump, sizing .003” to allow for spring back. Cheers. [/QUOTE]
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Fire forming question
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