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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to true the BC
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<blockquote data-quote="Taylorbok" data-source="post: 2542882" data-attributes="member: 118538"><p>Use G7.</p><p>To true your BC here is what I would do, shoot through your Chrono put that into your calculator with what ever BC is on the box, go to 600 yards and see what your actual DOPE is vs what the calculator spit out, adjust the muzzle velocity in your calculator until the numbers match. Now you need figure out at what distance your bullet goes transonic, your calculator should be able to show you this number. Find a target 80% that distance and shoot it, and compare actual dope to calculator, adjust BC in calculator until they match. now go back to 600 and make sure everything still lines up.</p></blockquote><p></p>
[QUOTE="Taylorbok, post: 2542882, member: 118538"] Use G7. To true your BC here is what I would do, shoot through your Chrono put that into your calculator with what ever BC is on the box, go to 600 yards and see what your actual DOPE is vs what the calculator spit out, adjust the muzzle velocity in your calculator until the numbers match. Now you need figure out at what distance your bullet goes transonic, your calculator should be able to show you this number. Find a target 80% that distance and shoot it, and compare actual dope to calculator, adjust BC in calculator until they match. now go back to 600 and make sure everything still lines up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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How to true the BC
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