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The Range
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224 valkyrie
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<blockquote data-quote="swampratt" data-source="post: 3102612" data-attributes="member: 15054"><p>That bullet drop calculation does not allow for the bullets dropping Ballistic Coefecient numbers the slower they go.</p><p>The 175 SMK was needing to be calculated at .496 BC as that is what Sierra claims at 1800-2800 FPS. .505 BC above 2800</p><p>then .485 BC below 1800 fps.</p><p>The 90 SMK starts off at .563 BC at 2080 fps and above then below that it is .550 BC and then below 1640 fps it is .480 BC</p><p></p><p>May not stack up like you think once you start shooting it.</p><p>The .308 with 155 Palma # 2158 can be launched at 2900fps easily I have done it with staying in the Load data in a 24" savage factory tube.</p><p>The drops and wind drift look very well for it. But proof is in shooting it.</p><p>That bullet likes velocity and I found you need to really speed it up to make it group tight.</p><p>I could not find an accuracy node down low.</p><p></p><p>Maybe that 224 valkyrie will not be picky when it comes to making accurate ammo for long range shooting.</p><p>I would be curious as to the real drop in inches at 1000 yards.</p><p></p><p>I have not had any bullets yet that followed the calculator at all distances.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3102612, member: 15054"] That bullet drop calculation does not allow for the bullets dropping Ballistic Coefecient numbers the slower they go. The 175 SMK was needing to be calculated at .496 BC as that is what Sierra claims at 1800-2800 FPS. .505 BC above 2800 then .485 BC below 1800 fps. The 90 SMK starts off at .563 BC at 2080 fps and above then below that it is .550 BC and then below 1640 fps it is .480 BC May not stack up like you think once you start shooting it. The .308 with 155 Palma # 2158 can be launched at 2900fps easily I have done it with staying in the Load data in a 24" savage factory tube. The drops and wind drift look very well for it. But proof is in shooting it. That bullet likes velocity and I found you need to really speed it up to make it group tight. I could not find an accuracy node down low. Maybe that 224 valkyrie will not be picky when it comes to making accurate ammo for long range shooting. I would be curious as to the real drop in inches at 1000 yards. I have not had any bullets yet that followed the calculator at all distances. [/QUOTE]
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