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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
25-06 velocity?
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<blockquote data-quote="elkaholic" data-source="post: 881080" data-attributes="member: 13833"><p>Basically, it ties in to sectional density. The lower the sd, with the same capacity case and pressure, the more velocity. i.e. you have a greater cross section for the pressure being exerted pushing the same weight faster (if that makes sense). But then it slows down quicker becasue the same weight is pushing a greater frontal area. This is true if you have no other variables in bullet design...rich</p><p></p><p>p.s. If you get up the 140 Berger in the 270, then the b.c. becomes a little higher than the 115 because the length/weight ratio changes increasing both the sd and therefore, the b.c.</p></blockquote><p></p>
[QUOTE="elkaholic, post: 881080, member: 13833"] Basically, it ties in to sectional density. The lower the sd, with the same capacity case and pressure, the more velocity. i.e. you have a greater cross section for the pressure being exerted pushing the same weight faster (if that makes sense). But then it slows down quicker becasue the same weight is pushing a greater frontal area. This is true if you have no other variables in bullet design...rich p.s. If you get up the 140 Berger in the 270, then the b.c. becomes a little higher than the 115 because the length/weight ratio changes increasing both the sd and therefore, the b.c. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
25-06 velocity?
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