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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel flute timing?
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<blockquote data-quote="IdahoCTD" data-source="post: 858945" data-attributes="member: 13110"><p>All bores are curved. They are turned on centers but some are like a jump rope between the two ends and some are out very little. He is talking about timing the curve of the bore into the vertical plane weather it is pointed up or down. If you have a long stem indicator you can dial a barrel in with the indicator in as far as it will go and then pull it out a inch or so and dial it in there as well. Basically your going in and out until that 1" section runs as true as you can make it. Then you run a indicator on the opposite end of the barrel to find the run out or "high spot". In theory this makes the point where the bullet enters the rifling as straight as possible to the bore.</p></blockquote><p></p>
[QUOTE="IdahoCTD, post: 858945, member: 13110"] All bores are curved. They are turned on centers but some are like a jump rope between the two ends and some are out very little. He is talking about timing the curve of the bore into the vertical plane weather it is pointed up or down. If you have a long stem indicator you can dial a barrel in with the indicator in as far as it will go and then pull it out a inch or so and dial it in there as well. Basically your going in and out until that 1" section runs as true as you can make it. Then you run a indicator on the opposite end of the barrel to find the run out or "high spot". In theory this makes the point where the bullet enters the rifling as straight as possible to the bore. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel flute timing?
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