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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Long Throat
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<blockquote data-quote="J E Custom" data-source="post: 1299226" data-attributes="member: 2736"><p>Freebore is not a problem if you have good case prep and uniform neck thickness. if you don't over size the brass and size only enough to close on the bolt with little pressure the cartridge and bullet will stay on the bore centerline and shoot no matter how much freebore you have.</p><p></p><p>If the case does not fit the chamber, the cartridge will lay in the bottom of the chamber even if you touch the lands with the bullet. This non-concentricity condition launches the bullet off center and can cause accuracy problems.</p><p></p><p>The best rifle cant make up for poorly loaded ammo, so try your best to load great ammo and you will be amazed at the difference in accuracy. I find that if I turn the necks when the brass is new, that it fire forms true and sizing it the minimum keeps it performing at it's best. After it is fire formed, I like to check the concentricity of every round to make sure I am loading good ammo. I like to stay below .002 thousandths run out in concentricity (I prefer .000 but cant always get it.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1299226, member: 2736"] Freebore is not a problem if you have good case prep and uniform neck thickness. if you don't over size the brass and size only enough to close on the bolt with little pressure the cartridge and bullet will stay on the bore centerline and shoot no matter how much freebore you have. If the case does not fit the chamber, the cartridge will lay in the bottom of the chamber even if you touch the lands with the bullet. This non-concentricity condition launches the bullet off center and can cause accuracy problems. The best rifle cant make up for poorly loaded ammo, so try your best to load great ammo and you will be amazed at the difference in accuracy. I find that if I turn the necks when the brass is new, that it fire forms true and sizing it the minimum keeps it performing at it's best. After it is fire formed, I like to check the concentricity of every round to make sure I am loading good ammo. I like to stay below .002 thousandths run out in concentricity (I prefer .000 but cant always get it. J E CUSTOM [/QUOTE]
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