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Rifles, Reloading, Optics, Equipment
Reloading
Neck Tension Effect on Accuracy
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<blockquote data-quote="bigedp51" data-source="post: 1255315" data-attributes="member: 28965"><p>Thank you. cape cove</p><p></p><p>I thought I was going to hear no one gave a rats ***, or never saw a violin case. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>All joking aside I collected mil-surp rifles and know how badly these longer and fatter chambers can torture brass. Then next down in size is SAAMI chambers and then smaller custom chambers.</p><p></p><p>The "smaller" chambers and "uniform" Lapua brass get along great and this keeps case distortion to a minimum. "BUT" a SAAMI chamber with Remchester brass can be another story. Example, I have Remington .223 cases with .009 neck thickness variation. And when I check the case body for variations many times they are as bad as the case neck.</p><p></p><p>I sort my cases using a simple Redding neck thickness gauge and with one twist of the wrist it tells me the quality of the case. Meaning if the neck is a uniform thickness normally the body of the case is also uniform.</p><p></p><p>Also a standard V-block type concentricity gauge "if" you can move the gauge to the base of the case and shoulder it will tell you if the case is egg shaped.</p><p></p><p>Besides the hornady gauge I have the RCBS case mastering gauge and is the Swiss army knife of gauges. Meaning its not the best of gauges but it does many jobs good enough. </p><p></p><p>This is why I said the two types of gauges give different readings with the Hornady gauge reading over half of what a V-block type gauge does for bullet runout.</p><p></p><p>Its too bad I'm retired, in my "golden years", have chronologically gifted eyesight, the start of cataracts and drink too much coffee to say runout matters.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1255315, member: 28965"] Thank you. cape cove I thought I was going to hear no one gave a rats ***, or never saw a violin case. :D All joking aside I collected mil-surp rifles and know how badly these longer and fatter chambers can torture brass. Then next down in size is SAAMI chambers and then smaller custom chambers. The "smaller" chambers and "uniform" Lapua brass get along great and this keeps case distortion to a minimum. "BUT" a SAAMI chamber with Remchester brass can be another story. Example, I have Remington .223 cases with .009 neck thickness variation. And when I check the case body for variations many times they are as bad as the case neck. I sort my cases using a simple Redding neck thickness gauge and with one twist of the wrist it tells me the quality of the case. Meaning if the neck is a uniform thickness normally the body of the case is also uniform. Also a standard V-block type concentricity gauge "if" you can move the gauge to the base of the case and shoulder it will tell you if the case is egg shaped. Besides the hornady gauge I have the RCBS case mastering gauge and is the Swiss army knife of gauges. Meaning its not the best of gauges but it does many jobs good enough. This is why I said the two types of gauges give different readings with the Hornady gauge reading over half of what a V-block type gauge does for bullet runout. Its too bad I'm retired, in my "golden years", have chronologically gifted eyesight, the start of cataracts and drink too much coffee to say runout matters. [/QUOTE]
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Neck Tension Effect on Accuracy
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