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Rifles, Reloading, Optics, Equipment
Reloading
Ballistic Coefficient (BC)
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<blockquote data-quote="Rogue" data-source="post: 125963" data-attributes="member: 6642"><p>Rotorhead - Thanks for the input!</p><p></p><p>I spent several hours today educating myself on what Balistic Coefficient is and how it is measured. I talked with bullet techs at Barnes, Nosler and Sierra. The Sierra 5th edition reloading book has a section in the back of the book titled "Exterior Ballistics." This section provides a wealth of information related to BC.</p><p></p><p>As there are current discussions concering BC, I offer the following:</p><p>The BC of any bullet is a constant until the bullet is fired. The moment the bullet touches the lands the BC becomes a variable. Altitude, temperature, barometeric pressure, relative humidity evelation angle, velocity, barrel quality and twist rate all effect a BC.</p><p></p><p>The Sierra Infinity Program can be used to calculate BC as the bullet is in flight. This procedure is explained in the Exterior Ballistics section of the book.</p><p></p><p>Rogue</p></blockquote><p></p>
[QUOTE="Rogue, post: 125963, member: 6642"] Rotorhead - Thanks for the input! I spent several hours today educating myself on what Balistic Coefficient is and how it is measured. I talked with bullet techs at Barnes, Nosler and Sierra. The Sierra 5th edition reloading book has a section in the back of the book titled "Exterior Ballistics." This section provides a wealth of information related to BC. As there are current discussions concering BC, I offer the following: The BC of any bullet is a constant until the bullet is fired. The moment the bullet touches the lands the BC becomes a variable. Altitude, temperature, barometeric pressure, relative humidity evelation angle, velocity, barrel quality and twist rate all effect a BC. The Sierra Infinity Program can be used to calculate BC as the bullet is in flight. This procedure is explained in the Exterior Ballistics section of the book. Rogue [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Ballistic Coefficient (BC)
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