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Rifles, Reloading, Optics, Equipment
Reloading
JLK Bullets
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<blockquote data-quote="coyotezapper" data-source="post: 1190245" data-attributes="member: 20438"><p>Most all bullets have some variance in base to ogive. In fact I have never seen any lot of bullets that did not have any. The best way to use these or any bullet is to establish your BTO measurement with the first one and then short seat each one .010" after that and then measure that BTO and then adjust die down to the final established BTO measurement. The last adjustment will be .001-.010" depending on the bullet. Bergers are usually better than most. If the last adjustment is .008" then you have .002" variance compared to the bullet that was used for your established BTO but they are now both the same distance from the lands. This requires a micrometer seater but is easy to do. In the end all of your OAL's will vary but your BTO will be the same and that is what you want for long range - consistent jump.</p></blockquote><p></p>
[QUOTE="coyotezapper, post: 1190245, member: 20438"] Most all bullets have some variance in base to ogive. In fact I have never seen any lot of bullets that did not have any. The best way to use these or any bullet is to establish your BTO measurement with the first one and then short seat each one .010" after that and then measure that BTO and then adjust die down to the final established BTO measurement. The last adjustment will be .001-.010" depending on the bullet. Bergers are usually better than most. If the last adjustment is .008" then you have .002" variance compared to the bullet that was used for your established BTO but they are now both the same distance from the lands. This requires a micrometer seater but is easy to do. In the end all of your OAL's will vary but your BTO will be the same and that is what you want for long range - consistent jump. [/QUOTE]
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