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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Effect of Bullet Tension
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<blockquote data-quote="budlight" data-source="post: 2016651" data-attributes="member: 2939"><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>QL is a good tool to get you in the ball park. QL and chronographs always seem to have some variations. When QL first came out they just didn't have enough data. There are just so many variations from age hardening of a copper bullet to the actual barrel. I've hand lapped barrel burner type rifles to keep the number of rounds down and no break in period. Polished SS barrels are slick enough to require more powder to get the same velocity. I also saw this when I was moly coating bullets. I know 243 and the AI are barrel burners because of overbore case capacity. That's why I stayed at 243 win.</p></blockquote><p></p>
[QUOTE="budlight, post: 2016651, member: 2939"] :) QL is a good tool to get you in the ball park. QL and chronographs always seem to have some variations. When QL first came out they just didn't have enough data. There are just so many variations from age hardening of a copper bullet to the actual barrel. I've hand lapped barrel burner type rifles to keep the number of rounds down and no break in period. Polished SS barrels are slick enough to require more powder to get the same velocity. I also saw this when I was moly coating bullets. I know 243 and the AI are barrel burners because of overbore case capacity. That's why I stayed at 243 win. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Velocity Effect of Bullet Tension
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