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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does BC matters?
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<blockquote data-quote="Petey308" data-source="post: 2619545" data-attributes="member: 106845"><p>I think it matters, yes. That's the answer to the post. That said, if you ask "Is BC everything?", that answer would be absolutely not.</p><p></p><p>Does BC <em>always </em>matter? Again, no.</p><p></p><p>In your example, you seem to be comparing two pretty high BC bullets. That's not a fair comparison. Compare that 245gr Berger to a 200gr Partition. The partition at 3150 will drift 15.3" at 700 yards and 35" at 1000 yards with just a 5mph wind. The Berger is 9.6" at 2900fps at 700 yards and 20.8" at 1000 yards. So that's a 6" difference at 700 yards and 15" at 1000 yards. That quite a bit for just a 5mph wind. A 10mph wind would be a difference of 11" at 700 yards and 29" at 1000 yards. That seems pretty significant to me, and more of a realistic wind. If you get that wind call wrong, you can see the possible difference that could mean with your shot placement.</p><p></p><p>And the difference with the Berger vs the Partition on that potential error is way in the favor of the Berger.</p><p></p><p>At 700 yards, the difference in a 5mph wind vs a 10mph with with the Partition is 15" alone. And it's almost 3 feet difference at 1000 yards.</p><p></p><p>It's a 9.5" difference between a 5mph vs 10mph wind at 700 yards with the Berger. It's about a 21" difference at 1000 yards. So well over a foot less in potential shot placement error there at 1000 yards.</p><p></p><p>I realize likely no one is shooting that Partition to 1000 yards though. It's just an example. Even a 6" difference at 700 yards is pretty significant and if you pull the shot under adrenaline, fatigue, cold/numb fingers, etc, that just adds to the shot placement error.</p></blockquote><p></p>
[QUOTE="Petey308, post: 2619545, member: 106845"] I think it matters, yes. That’s the answer to the post. That said, if you ask “Is BC everything?”, that answer would be absolutely not. Does BC [I]always [/I]matter? Again, no. In your example, you seem to be comparing two pretty high BC bullets. That’s not a fair comparison. Compare that 245gr Berger to a 200gr Partition. The partition at 3150 will drift 15.3” at 700 yards and 35” at 1000 yards with just a 5mph wind. The Berger is 9.6” at 2900fps at 700 yards and 20.8” at 1000 yards. So that’s a 6” difference at 700 yards and 15” at 1000 yards. That quite a bit for just a 5mph wind. A 10mph wind would be a difference of 11” at 700 yards and 29” at 1000 yards. That seems pretty significant to me, and more of a realistic wind. If you get that wind call wrong, you can see the possible difference that could mean with your shot placement. And the difference with the Berger vs the Partition on that potential error is way in the favor of the Berger. At 700 yards, the difference in a 5mph wind vs a 10mph with with the Partition is 15" alone. And it's almost 3 feet difference at 1000 yards. It's a 9.5" difference between a 5mph vs 10mph wind at 700 yards with the Berger. It's about a 21" difference at 1000 yards. So well over a foot less in potential shot placement error there at 1000 yards. I realize likely no one is shooting that Partition to 1000 yards though. It’s just an example. Even a 6” difference at 700 yards is pretty significant and if you pull the shot under adrenaline, fatigue, cold/numb fingers, etc, that just adds to the shot placement error. [/QUOTE]
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