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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity and BC?
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<blockquote data-quote="Jeff In TX" data-source="post: 83768" data-attributes="member: 1522"><p>Exhaust3,</p><p></p><p>If you have access to a ballistic computer you can usually reverse engineer your data. However, you need good input data. The BC that Sierra advertises is a baseline, your gun with your load and velocity may change it a bit. </p><p></p><p>When I see folks doing this, the biggest mistake in reverse engineering is the scope height. Most use a standard 1.5 inches that comes in the ballistic computers. You need to measure it and use the correct height.</p><p></p><p>Then once you have all the input data, start playing with the BC until it closely matches your actual data. You won't get it exact, but you should be able to get close.</p><p></p><p>Hope it helps,</p></blockquote><p></p>
[QUOTE="Jeff In TX, post: 83768, member: 1522"] Exhaust3, If you have access to a ballistic computer you can usually reverse engineer your data. However, you need good input data. The BC that Sierra advertises is a baseline, your gun with your load and velocity may change it a bit. When I see folks doing this, the biggest mistake in reverse engineering is the scope height. Most use a standard 1.5 inches that comes in the ballistic computers. You need to measure it and use the correct height. Then once you have all the input data, start playing with the BC until it closely matches your actual data. You won't get it exact, but you should be able to get close. Hope it helps, [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity and BC?
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