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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
best way to find the bushing size for neck dies?
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<blockquote data-quote="Brent" data-source="post: 25994" data-attributes="member: 99"><p>I settled on turning the necks on my 300 Ultra a couple thou thinner to work with the bushings I already had, cheaper at the time. My total chambers neck clearance was .006" and now it's about .008", so brass will work a little more... a consideration. Tight head space will keep things centered up with the bore still, so that part I'm not too worried about. </p><p></p><p>I figured the same thing was causing this too, it just makes perfect sense the brass would not just stay tight to the bushing bore as it rounded and entered into it. Various chamber overall clearances most definately explain the differences amoung everyones bushing size selection, I thought it was my new brass that was softer keeping things at the same OD as the bushings ID in the beginning. The new brass was already sized though, the expander had only been run through it to iron out the dented in necks so the cases entered the bushing very straight. This is likely why they stayed the same as the bushing size when sizing the first time and why they did not after firing and sizing again. Another reason for a good match chamber. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Brent, post: 25994, member: 99"] I settled on turning the necks on my 300 Ultra a couple thou thinner to work with the bushings I already had, cheaper at the time. My total chambers neck clearance was .006" and now it's about .008", so brass will work a little more... a consideration. Tight head space will keep things centered up with the bore still, so that part I'm not too worried about. I figured the same thing was causing this too, it just makes perfect sense the brass would not just stay tight to the bushing bore as it rounded and entered into it. Various chamber overall clearances most definately explain the differences amoung everyones bushing size selection, I thought it was my new brass that was softer keeping things at the same OD as the bushings ID in the beginning. The new brass was already sized though, the expander had only been run through it to iron out the dented in necks so the cases entered the bushing very straight. This is likely why they stayed the same as the bushing size when sizing the first time and why they did not after firing and sizing again. Another reason for a good match chamber. [img]images/icons/smile.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
best way to find the bushing size for neck dies?
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