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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to true the BC
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<blockquote data-quote="Ckleeves" data-source="post: 2542996" data-attributes="member: 83259"><p>Just my .02 but i have never had luck with trueing BC at 500 yards. Run it though a calculator and you will see what I mean. A .010 change in G7 BC at 500 yards results in only a little bit over 1/4" change in impact. Whereas at 1000 yards It's 4" so you start to get into something measurable.</p><p></p><p> This is with a bullet I already had loaded in my kestrel just fyi not the OP's. That same 1/4" on the target from adjusting the BC by .010 can also be manipulated by 7fps of velocity so a guy would have to have fantastic SD's and be a great shot to really get anything meaningful out of it. </p><p></p><p>It's already been said but velocity to 500-600 and bc beyond that.</p></blockquote><p></p>
[QUOTE="Ckleeves, post: 2542996, member: 83259"] Just my .02 but i have never had luck with trueing BC at 500 yards. Run it though a calculator and you will see what I mean. A .010 change in G7 BC at 500 yards results in only a little bit over 1/4” change in impact. Whereas at 1000 yards It’s 4” so you start to get into something measurable. This is with a bullet I already had loaded in my kestrel just fyi not the OP’s. That same 1/4” on the target from adjusting the BC by .010 can also be manipulated by 7fps of velocity so a guy would have to have fantastic SD’s and be a great shot to really get anything meaningful out of it. It’s already been said but velocity to 500-600 and bc beyond that. [/QUOTE]
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How to true the BC
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