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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet weight vs velocity
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<blockquote data-quote="BrentM" data-source="post: 871509" data-attributes="member: 61747"><p>6.5 specs vs a 308 @1000 yards, 5 mph full value wind.</p><p> </p><p>140 vld at 2980 2.4 MOA</p><p>160 vld at 2700 2.4 MOA</p><p> </p><p>180 nosler accubond at 2700 3.5 MOA</p><p>165 nosler BT. at 2800 3.5MOA</p><p> </p><p> </p><p>BC has more to do with it than anything.</p><p> </p><p>Two examples take the 180 AB and make it .600 BC vs .507 with same speed and drift is 2.8. Take the .507 BC but add 200 fps and the drift is 3.1. </p><p> </p><p>To further my view point the BC difference on the 6.5 bullets is .617 vs .680. The 308 bullets have similar issues in that the heavier bullet has a higher BC rating.</p><p> </p><p>Shoot the highest BC you can at the fastest rate. This is why guys love the wildcat 338's etc for extreme LR.</p></blockquote><p></p>
[QUOTE="BrentM, post: 871509, member: 61747"] 6.5 specs vs a 308 @1000 yards, 5 mph full value wind. 140 vld at 2980 2.4 MOA 160 vld at 2700 2.4 MOA 180 nosler accubond at 2700 3.5 MOA 165 nosler BT. at 2800 3.5MOA BC has more to do with it than anything. Two examples take the 180 AB and make it .600 BC vs .507 with same speed and drift is 2.8. Take the .507 BC but add 200 fps and the drift is 3.1. To further my view point the BC difference on the 6.5 bullets is .617 vs .680. The 308 bullets have similar issues in that the heavier bullet has a higher BC rating. Shoot the highest BC you can at the fastest rate. This is why guys love the wildcat 338's etc for extreme LR. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet weight vs velocity
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