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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Badlands Precision Bullets thread - From BC to terminal ballistics
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<blockquote data-quote="nralifer" data-source="post: 2694438" data-attributes="member: 94556"><p>Don't despair. With a 1:8 twist you could use the 140 gr .277 SBD2 and still be ahead of the Berger. Hard to predict how much BC you would lose using the 150 in a 1:8 twist. At sea level maybe a little but hunting at a higher altitude you would get it back because the SG would increase from 1.38 to 1.5 at 1300 feet. Elk at 5000' you would be somewhat over stabilized which is fine. My bias is to use the lighter bullet in a shorter barrel to assure you get the speed you want, but that would be up to you.</p></blockquote><p></p>
[QUOTE="nralifer, post: 2694438, member: 94556"] Don’t despair. With a 1:8 twist you could use the 140 gr .277 SBD2 and still be ahead of the Berger. Hard to predict how much BC you would lose using the 150 in a 1:8 twist. At sea level maybe a little but hunting at a higher altitude you would get it back because the SG would increase from 1.38 to 1.5 at 1300 feet. Elk at 5000’ you would be somewhat over stabilized which is fine. My bias is to use the lighter bullet in a shorter barrel to assure you get the speed you want, but that would be up to you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Badlands Precision Bullets thread - From BC to terminal ballistics
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