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<blockquote data-quote="J E Custom" data-source="post: 136905" data-attributes="member: 2736"><p>Screech</p><p></p><p>This subject is very controversial so I will give</p><p>you an opinion because every rifle is different</p><p>in how much freebore it likes.</p><p></p><p>The reason for seating against the land is to align</p><p>the bullet to the rifling. A full length sized round</p><p>lays in the bottom of the chamber with the bullet</p><p>below the centerline of the bore.</p><p></p><p>Neck sizing only helps alignment and brass life by</p><p>minimizing head space.</p><p></p><p>If you seat against the lands start with low powder</p><p>charges and work up slowly (less than 1/2 a grain at</p><p>a time)</p><p></p><p>Some bullet manufactures recomend .050 clearance</p><p>to the lands. Weatherby,s normaly have .250 to .325</p><p>freebore.But the factory loads cannot be used in a </p><p>rifle with little or no freebore without excessive</p><p>pressure.</p><p></p><p>So if you have a rifle with lots of freebore then </p><p>try neck sizing .and if you want to load hard</p><p>with the bullet close to the lands then start</p><p>.020 off and work closer but watch for pressure</p><p>signs then back off 1/2 to 1 grain on your powder</p><p>charge.</p><p></p><p>Take your time and be careful</p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 136905, member: 2736"] Screech This subject is very controversial so I will give you an opinion because every rifle is different in how much freebore it likes. The reason for seating against the land is to align the bullet to the rifling. A full length sized round lays in the bottom of the chamber with the bullet below the centerline of the bore. Neck sizing only helps alignment and brass life by minimizing head space. If you seat against the lands start with low powder charges and work up slowly (less than 1/2 a grain at a time) Some bullet manufactures recomend .050 clearance to the lands. Weatherby,s normaly have .250 to .325 freebore.But the factory loads cannot be used in a rifle with little or no freebore without excessive pressure. So if you have a rifle with lots of freebore then try neck sizing .and if you want to load hard with the bullet close to the lands then start .020 off and work closer but watch for pressure signs then back off 1/2 to 1 grain on your powder charge. Take your time and be careful J E CUSTOM [/QUOTE]
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