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Rifles, Reloading, Optics, Equipment
Reloading
.270Win Chamber too small
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<blockquote data-quote="Namibia" data-source="post: 318220" data-attributes="member: 20207"><p>New brass need less presure to chamber (thus fitting my chamber better).</p><p> </p><p>I measured all of new brass, once fired (fire-formed in my chamber) brass, and resized brass. </p><p>The measurements in the RCBS presision mic were as follow:</p><p> </p><p>New: <strong>0.000'</strong></p><p>Once fired: <strong>-0.0025'</strong></p><p>Resized: <strong>+0.002'</strong></p><p></p><p>Will I be correct to assume that my chamber's dimensions will then be {<strong>-0.0025' </strong>(once-fired case dimension)<strong> + 0.0015' </strong>(to allow "average case Spring-back") <strong>= -0.001'</strong> (or 0.001' smaller than ANSI/SAAMI min. specs.?</p><p> </p><p>My rifle is a Walther - barrel build on K98 -mauser action.</p></blockquote><p></p>
[QUOTE="Namibia, post: 318220, member: 20207"] New brass need less presure to chamber (thus fitting my chamber better). I measured all of new brass, once fired (fire-formed in my chamber) brass, and resized brass. The measurements in the RCBS presision mic were as follow: New: [B]0.000'[/B] Once fired: [B]-0.0025'[/B] Resized: [B]+0.002'[/B] Will I be correct to assume that my chamber's dimensions will then be {[B]-0.0025' [/B](once-fired case dimension)[B] + 0.0015' [/B](to allow "average case Spring-back") [B]= -0.001'[/B] (or 0.001' smaller than ANSI/SAAMI min. specs.? My rifle is a Walther - barrel build on K98 -mauser action. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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.270Win Chamber too small
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