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Rifles, Reloading, Optics, Equipment
Reloading
Shoulder bump problem? Not far enough?
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<blockquote data-quote="Bart B" data-source="post: 868001" data-attributes="member: 5302"><p>Brent, if your case measurements as you do them grows a few thousandths after full length sizing them, I think the shoulder's being move forward as the case body gets sized down in diameter. This is normal when the die's not set low enough in the presss and its shoulder's not touching the case shoulder at all.</p><p></p><p>Loosen the die's lock ring, turn the die down such that its circumference moves 3/10ths inch relative to the lock ring. That should lower the die about .003" and make your measurements that much shorter.</p><p></p><p>Here's drawings of the .284 Win case and chamber showing how they're typically measured for headspace. These dimensions are not shown on the case diagrams you referenced. The ones measuring .420" diameter are the reference ones. </p><p></p><p><a href="http://www.saami.org/PubResources/CC_Drawings/Rifle/284%20Winchester.pdf" target="_blank">http://www.saami.org/PubResources/CC_Drawings/Rifle/284 Winchester.pdf</a></p><p></p><p>I think most 'smiths chambering for the 6.5x.284 use .284 Win headspace gauges.</p></blockquote><p></p>
[QUOTE="Bart B, post: 868001, member: 5302"] Brent, if your case measurements as you do them grows a few thousandths after full length sizing them, I think the shoulder's being move forward as the case body gets sized down in diameter. This is normal when the die's not set low enough in the presss and its shoulder's not touching the case shoulder at all. Loosen the die's lock ring, turn the die down such that its circumference moves 3/10ths inch relative to the lock ring. That should lower the die about .003" and make your measurements that much shorter. Here's drawings of the .284 Win case and chamber showing how they're typically measured for headspace. These dimensions are not shown on the case diagrams you referenced. The ones measuring .420" diameter are the reference ones. [url]http://www.saami.org/PubResources/CC_Drawings/Rifle/284%20Winchester.pdf[/url] I think most 'smiths chambering for the 6.5x.284 use .284 Win headspace gauges. [/QUOTE]
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Reloading
Shoulder bump problem? Not far enough?
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