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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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<blockquote data-quote="MontanaRifleman" data-source="post: 777887" data-attributes="member: 11717"><p>cerwin, I think what you are referring to as a case holder is actually a shell holder? What you place on the ram to hold the case as you work it in press.</p><p></p><p>Yes i realize what you were using the Sinclair expander die for... I googled it and found a youtube video that demonstrated it. I like it and will probably adapt it. I'm also learning.</p><p></p><p>That said, if you have any irregularities in your neck, they will be moved back inward when you Neck or FL size your brass without an expander ball. Not sure how that affects neck tension?</p><p></p><p>Bart, I do realize that seating the bullet will move those irregularities back out, but my question is, is consistency of neck tension affected? If an expander ball is used to move the irregularities outward, then you have a circular neck ring on the inside without irregularities to receive the bullets. it seems to me there would be more consistent neck tension with that scenario?</p><p></p><p>Not sure how much it matters and it may be one of those things I experiment with to see if there is a noticible difference. I should buy something cheap like a 308 to do my experimenting with <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></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 777887, member: 11717"] cerwin, I think what you are referring to as a case holder is actually a shell holder? What you place on the ram to hold the case as you work it in press. Yes i realize what you were using the Sinclair expander die for... I googled it and found a youtube video that demonstrated it. I like it and will probably adapt it. I'm also learning. That said, if you have any irregularities in your neck, they will be moved back inward when you Neck or FL size your brass without an expander ball. Not sure how that affects neck tension? Bart, I do realize that seating the bullet will move those irregularities back out, but my question is, is consistency of neck tension affected? If an expander ball is used to move the irregularities outward, then you have a circular neck ring on the inside without irregularities to receive the bullets. it seems to me there would be more consistent neck tension with that scenario? Not sure how much it matters and it may be one of those things I experiment with to see if there is a noticible difference. I should buy something cheap like a 308 to do my experimenting with :D [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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