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Rifles, Reloading, Optics, Equipment
Reloading
Case neck thickness
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<blockquote data-quote="AZShooter" data-source="post: 1145574" data-attributes="member: 5219"><p>Sidecarflip,</p><p></p><p>I envy your need to only shoot out to 200 yds. </p><p></p><p>This IS a site called LONG range hunting. So why not address factors in doing just that?</p><p></p><p>We shoot much greater distances when we hunt and to do so accurately and humanely we need to keep groups sizes to minimum. Why measure neck wall thickness? Quote from 6BR.com:</p><p></p><p>Extreme accuracy demands consistent case necks. If your case neck walls are thicker on one side than another, your bullets can be positioned off-center in the chamber, or tilted slightly off the bore axis. That means your bullets can actually start off crooked as they enter the barrel. (And "jamming" bullets into the rifling won't necessarily correct the problem.) </p><p></p><p>If some of your case necks are significantly thicker than others, it will be difficult to maintain consistent neck tension from one round to another. That can kill accuracy in a number of ways. Likewise, widely varying neck tension can cause nasty swings in cartridge pressures and velocities.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1145574, member: 5219"] Sidecarflip, I envy your need to only shoot out to 200 yds. This IS a site called LONG range hunting. So why not address factors in doing just that? We shoot much greater distances when we hunt and to do so accurately and humanely we need to keep groups sizes to minimum. Why measure neck wall thickness? Quote from 6BR.com: Extreme accuracy demands consistent case necks. If your case neck walls are thicker on one side than another, your bullets can be positioned off-center in the chamber, or tilted slightly off the bore axis. That means your bullets can actually start off crooked as they enter the barrel. (And "jamming" bullets into the rifling won't necessarily correct the problem.) If some of your case necks are significantly thicker than others, it will be difficult to maintain consistent neck tension from one round to another. That can kill accuracy in a number of ways. Likewise, widely varying neck tension can cause nasty swings in cartridge pressures and velocities. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case neck thickness
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