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Rifles, Reloading, Optics, Equipment
Reloading
Necking down from a 300wsm to 270 wsm
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<blockquote data-quote="Lefty7mmstw" data-source="post: 770346" data-attributes="member: 48043"><p>Necking one case of a family to another has more to do with component sourcing than anything else. You don't get brass that can take more abuse. They pretty much all will take the 65,000 psi saami allows them.</p><p> </p><p> The only time you will benefit at all is if you take one of the brands that last longer( lapua comes to mind) and re-form to another caliber. </p><p> </p><p>Necking and forming brass takes some care also, as you don't always end up with a square product. Brass tends to grow differently on one side than the other. I've taken this to the extreme trying to knock the neck out of an '06 necked to 35 whelen. I took it from 35 whelen to 270 win three times and measured the length disparity between sides of the mouth. The high side was 40 thousandths taller than the low side. That is a lot of difference in neck thickness between the high and low sides.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 770346, member: 48043"] Necking one case of a family to another has more to do with component sourcing than anything else. You don't get brass that can take more abuse. They pretty much all will take the 65,000 psi saami allows them. The only time you will benefit at all is if you take one of the brands that last longer( lapua comes to mind) and re-form to another caliber. Necking and forming brass takes some care also, as you don't always end up with a square product. Brass tends to grow differently on one side than the other. I've taken this to the extreme trying to knock the neck out of an '06 necked to 35 whelen. I took it from 35 whelen to 270 win three times and measured the length disparity between sides of the mouth. The high side was 40 thousandths taller than the low side. That is a lot of difference in neck thickness between the high and low sides. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Necking down from a 300wsm to 270 wsm
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