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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Measuring to the lands
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<blockquote data-quote="Gene" data-source="post: 1082536" data-attributes="member: 7402"><p>No matter which comparator or other device you use it will be nothing more than a approximate point where you hit the ogive. After you make the measurement, prepare a dummy case from the same rifle (no powder or primer) and seat the bullet to about .005" beyond the comparator measurement, gently close the bolt on the dummy, and remove it from the chamber. With a jewelers loupe, or magnifiner, find the faint marks made by bullet kissing the lands. Do this three times, average the results, and mark it down. From that point, with those same bullets, you will always know where to start either jumping or jamming your bullets.</p></blockquote><p></p>
[QUOTE="Gene, post: 1082536, member: 7402"] No matter which comparator or other device you use it will be nothing more than a approximate point where you hit the ogive. After you make the measurement, prepare a dummy case from the same rifle (no powder or primer) and seat the bullet to about .005" beyond the comparator measurement, gently close the bolt on the dummy, and remove it from the chamber. With a jewelers loupe, or magnifiner, find the faint marks made by bullet kissing the lands. Do this three times, average the results, and mark it down. From that point, with those same bullets, you will always know where to start either jumping or jamming your bullets. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Measuring to the lands
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