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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How important is bc?
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<blockquote data-quote="Jon A" data-source="post: 357204" data-attributes="member: 319"><p>Wind drift is less related to time of flight than it is to BC. If you try and make a direct correlation between TOF and wind drift you're just going to confuse yourself—because a big, slow, high BC bullet can have much less wind drift than a faster lower BC bullet—even if it has a longer time of flight.</p><p></p><p>It's not a matter of how long the bullet is in the air, it's a matter of how much effect the air has on the bullet while it is—which is in a sense exactly what BC measures for you. The higher the BC, the less affect the atmosphere has on the bullet; from slowing its velocity to pushing it sideways in the wind (or up or down for up/down drafts).</p></blockquote><p></p>
[QUOTE="Jon A, post: 357204, member: 319"] Wind drift is less related to time of flight than it is to BC. If you try and make a direct correlation between TOF and wind drift you’re just going to confuse yourself—because a big, slow, high BC bullet can have much less wind drift than a faster lower BC bullet—even if it has a longer time of flight. It’s not a matter of how long the bullet is in the air, it’s a matter of how much effect the air has on the bullet while it is—which is in a sense exactly what BC measures for you. The higher the BC, the less affect the atmosphere has on the bullet; from slowing its velocity to pushing it sideways in the wind (or up or down for up/down drafts). [/QUOTE]
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How important is bc?
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