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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
JBM ballistics drop table ???
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<blockquote data-quote="dfanonymous" data-source="post: 1938485" data-attributes="member: 97050"><p>I'm not disagreeing. I'm not saying that it you can just leave the BC at zero. Or 1.</p><p></p><p>You are wrong about truing however. You are trueing incorrectly if you are matching to only one distance. This is why it's better to true MV 10% under transonic. Kestrel says so, AB says so, accuracy first says so, litz says so, i say so.</p><p></p><p>Then worry about your box given BC past that or whatever. The goal is somewhere around mach .9.</p><p></p><p>However, doing so would sometimes mess up the closer ranges so the idea use to be use the BC for different mach ranges and set up multiple profiles for different distances. I got tired of doing that so I use a custom curve. </p><p></p><p>But we are talking about 300y. And the OP already had a bc that seemed about what Hornady's was. So, the notion is, BC won't matter until trans to .9 Mach.</p></blockquote><p></p>
[QUOTE="dfanonymous, post: 1938485, member: 97050"] I’m not disagreeing. I’m not saying that it you can just leave the BC at zero. Or 1. You are wrong about truing however. You are trueing incorrectly if you are matching to only one distance. This is why it’s better to true MV 10% under transonic. Kestrel says so, AB says so, accuracy first says so, litz says so, i say so. Then worry about your box given BC past that or whatever. The goal is somewhere around mach .9. However, doing so would sometimes mess up the closer ranges so the idea use to be use the BC for different mach ranges and set up multiple profiles for different distances. I got tired of doing that so I use a custom curve. But we are talking about 300y. And the OP already had a bc that seemed about what Hornady’s was. So, the notion is, BC won’t matter until trans to .9 Mach. [/QUOTE]
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JBM ballistics drop table ???
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