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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BC 's effect on POI
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<blockquote data-quote="Michael Eichele" data-source="post: 31182" data-attributes="member: 1007"><p><strong>Re: BC \'s effect on POI</strong></p><p></p><p>Part of the reason the BC is inflated is that they are solid copper. They have a much differant specific gravity factor. It also takes a tighter than normal twist to get good stabilty out of em too becasue of this. If they were the length they are and jacketed lead, they would be the advertised BC and they would use a twist formula most of us use.</p><p></p><p>They do smoke coming out of the barrel though. Have had 2900 FPS out of a 26" 12 twist 308.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 31182, member: 1007"] [b]Re: BC \'s effect on POI[/b] Part of the reason the BC is inflated is that they are solid copper. They have a much differant specific gravity factor. It also takes a tighter than normal twist to get good stabilty out of em too becasue of this. If they were the length they are and jacketed lead, they would be the advertised BC and they would use a twist formula most of us use. They do smoke coming out of the barrel though. Have had 2900 FPS out of a 26" 12 twist 308. [/QUOTE]
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BC 's effect on POI
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