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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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<blockquote data-quote="Alex Wheeler" data-source="post: 1846900" data-attributes="member: 101859"><p>This picture may help with visualizing the freebore diameter's role. The yellow arrow points to the clearance around the bullet in the freebore diameter. It doesnt matter if your jumping or jamming the bullet, there is usually about .0002" clearance here. No matter how you size a case, the bullet will be aligned to the bore to within .0002" or you wont be able to chamber the round. This applies to well built rifles with freebores. You can also see how a very tightly fitted case with even the slightest amount of runout will cause a bind in the freebore. A properly full length sized case gives just enough room to allow the bullet to freely rest in the freebore without bind. And since we can not perfectly control runout, clearance is a good thing. 20 years ago the trend was tighter is better, today its to give things a little room, and the guns are shooting better than ever.</p><p></p><p>[ATTACH=full]179740[/ATTACH]</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1846900, member: 101859"] This picture may help with visualizing the freebore diameter's role. The yellow arrow points to the clearance around the bullet in the freebore diameter. It doesnt matter if your jumping or jamming the bullet, there is usually about .0002" clearance here. No matter how you size a case, the bullet will be aligned to the bore to within .0002" or you wont be able to chamber the round. This applies to well built rifles with freebores. You can also see how a very tightly fitted case with even the slightest amount of runout will cause a bind in the freebore. A properly full length sized case gives just enough room to allow the bullet to freely rest in the freebore without bind. And since we can not perfectly control runout, clearance is a good thing. 20 years ago the trend was tighter is better, today its to give things a little room, and the guns are shooting better than ever. [ATTACH type="full" alt="b59c28e828a3e9d5d1f05436b9a64a9b.jpg"]179740[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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