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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BC Article- Link
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<blockquote data-quote="Jon A" data-source="post: 358538" data-attributes="member: 319"><p>Yes, that's what he wrote. And it's wrong. The standard conditions corrected BC (which is what you need to enter into ballistics programs) <strong>does not</strong> change as those conditions vary. Because it's corrected. That's the point. </p><p></p><p>People reading that will believe that advertised BC's, even if accurate, won't do them any good if they don't live at sea level. That's simply not correct. He did more harm than good. </p><p></p><p>I don't see much distinction. Anyway, if he has identified a barrel/bullet/crown combination that really flies so much flatter than computer models predict, he could bottle it, sell it and be an instant millionaire. </p><p></p><p>Regardless, the point is that believing such crude and inaccurate measurement methods are sufficient to prove some radical theory that his particular rifle defies the laws of exterior ballistics is just silly, and it makes me sad so many readers will eat it up.</p><p></p><p>May I respectfully suggest you read the article again. Because that's exactly what he said. BC's just can't be trusted. If you live the Rockies, your bullet may have a BC 20% higher than advertised (like the example he gives). If computer models can't predict trajectory well enough for you to hit the target at 400 yds, they aren't going to be within 10 feet at 1000 yds! Luckily, that's just not true.</p><p></p><p>That was posted on another competing board so I probably shouldn't link. He has actually said much worse than that about long range hunters but wanted to stay out of that. </p><p></p><p>The point was when somebody not only doesn't practice your hobby but holds disdain for it, he might not be the best source of technical information and advice on the subject.</p></blockquote><p></p>
[QUOTE="Jon A, post: 358538, member: 319"] Yes, that's what he wrote. And it's wrong. The standard conditions corrected BC (which is what you need to enter into ballistics programs) [B]does not[/B] change as those conditions vary. Because it's corrected. That's the point. People reading that will believe that advertised BC's, even if accurate, won't do them any good if they don't live at sea level. That's simply not correct. He did more harm than good. I don't see much distinction. Anyway, if he has identified a barrel/bullet/crown combination that really flies so much flatter than computer models predict, he could bottle it, sell it and be an instant millionaire. Regardless, the point is that believing such crude and inaccurate measurement methods are sufficient to prove some radical theory that his particular rifle defies the laws of exterior ballistics is just silly, and it makes me sad so many readers will eat it up. May I respectfully suggest you read the article again. Because that's exactly what he said. BC's just can't be trusted. If you live the Rockies, your bullet may have a BC 20% higher than advertised (like the example he gives). If computer models can't predict trajectory well enough for you to hit the target at 400 yds, they aren't going to be within 10 feet at 1000 yds! Luckily, that's just not true. That was posted on another competing board so I probably shouldn't link. He has actually said much worse than that about long range hunters but wanted to stay out of that. The point was when somebody not only doesn't practice your hobby but holds disdain for it, he might not be the best source of technical information and advice on the subject. [/QUOTE]
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BC Article- Link
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