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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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<blockquote data-quote="groper" data-source="post: 480619" data-attributes="member: 12550"><p>The "significance" is important because it defines how much error we can expect in a single long range cold bore shot placement - whats important to us.</p><p></p><p>If one was to put a 1/2moa aiming error, then misread the wind by another 1/2moa, then shoot a bullet with a 10% BC loss- or a 10% BC estimation error in trajectory - you can see where this is going cant you? This is another reason, the BC should be as close to a "best cumulative average" figure you can get. - to maximize your chances and minimize your errors.</p><p></p><p> Slight Trimming of meplats uniforms your bullets and therefore uniforms BC - its worth doing <u><strong>IF</strong></u> your bullets have inconsistent meplat diameters... it has a more noticeable effect in the small calibers where the meplat dia is a larger % of the caliber diameter.</p></blockquote><p></p>
[QUOTE="groper, post: 480619, member: 12550"] The "significance" is important because it defines how much error we can expect in a single long range cold bore shot placement - whats important to us. If one was to put a 1/2moa aiming error, then misread the wind by another 1/2moa, then shoot a bullet with a 10% BC loss- or a 10% BC estimation error in trajectory - you can see where this is going cant you? This is another reason, the BC should be as close to a "best cumulative average" figure you can get. - to maximize your chances and minimize your errors. Slight Trimming of meplats uniforms your bullets and therefore uniforms BC - its worth doing [U][B]IF[/B][/U] your bullets have inconsistent meplat diameters... it has a more noticeable effect in the small calibers where the meplat dia is a larger % of the caliber diameter. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Let's argue about BC's
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