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Rifles, Reloading, Optics, Equipment
Reloading
Does Cases Grow Longer when Sized?
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<blockquote data-quote="Bart B" data-source="post: 793476" data-attributes="member: 5302"><p>Yes, if you're measuring head to shoulder length, or case headspace. As the case body is sized down that pushes the shoulder forward. If the die's shoulder doesn't stop it moving forward, then it will have longer case headspace than when fired.</p><p></p><p>Fired bottleneck cases should have their shoulders set back about 2 thousandths for best accuracy and case life.</p><p></p><p>If the case headspace is too much and the bolt binds when closed on one, the bolt won't lock up in the same place for each shot and accuracy suffers.</p><p></p><p>1/4 turn on your die changes it position in the press about .016". There's about .072" between its 14 threads per inch; 1 divided by 14 equals about .072. Copy then print the following actual size and the labels should fit your die lock rings.</p><p></p><p><img src="http://i860.photobucket.com/albums/ab170/jepp2/DieAdjustment-1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Bart B, post: 793476, member: 5302"] Yes, if you're measuring head to shoulder length, or case headspace. As the case body is sized down that pushes the shoulder forward. If the die's shoulder doesn't stop it moving forward, then it will have longer case headspace than when fired. Fired bottleneck cases should have their shoulders set back about 2 thousandths for best accuracy and case life. If the case headspace is too much and the bolt binds when closed on one, the bolt won't lock up in the same place for each shot and accuracy suffers. 1/4 turn on your die changes it position in the press about .016". There's about .072" between its 14 threads per inch; 1 divided by 14 equals about .072. Copy then print the following actual size and the labels should fit your die lock rings. [img]http://i860.photobucket.com/albums/ab170/jepp2/DieAdjustment-1.jpg[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Does Cases Grow Longer when Sized?
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