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Rifles, Reloading, Optics, Equipment
Gunsmithing
How to figure out freebore? How much is too Much??
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<blockquote data-quote="pig ranch deadeye" data-source="post: 2116602" data-attributes="member: 86978"><p>One point of view is to seat close to the lands. That is not the only point of view. As in all things, there is a tradeoff. </p><p></p><p>If you don't approach the lands that can be a plus. If the bullet jumps a bit first, pressure is reduced. You can always find a load that gives a good group even if your bullet is far behind the lands. You might have to try a few loads before you find the right one. This is how I loaded the Weatherby 300 back in the sixties, using 4831. You could always find a group by experimenting with different charges. The extra free-bore is good for an additional 150 fps in velocity when loading to the same pressure limit.</p></blockquote><p></p>
[QUOTE="pig ranch deadeye, post: 2116602, member: 86978"] One point of view is to seat close to the lands. That is not the only point of view. As in all things, there is a tradeoff. If you don't approach the lands that can be a plus. If the bullet jumps a bit first, pressure is reduced. You can always find a load that gives a good group even if your bullet is far behind the lands. You might have to try a few loads before you find the right one. This is how I loaded the Weatherby 300 back in the sixties, using 4831. You could always find a group by experimenting with different charges. The extra free-bore is good for an additional 150 fps in velocity when loading to the same pressure limit. [/QUOTE]
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How to figure out freebore? How much is too Much??
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