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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does velocity affect ballistic coefficient?
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<blockquote data-quote="MarshMello" data-source="post: 2275535" data-attributes="member: 67621"><p>Your plan to take it out to 800+ yards is a solid one. Make sure to zero it again in those conditions first to get the most accurate data. If you are prone especially, be aware of mirage. You'll find the BC adjustments will be most telling past 600. Don't discount mirage and wind as well. Mirage can make the target appear higher and cause you to hold higher. Wind can have some interesting effects on elevation as well at distance. I switched the 4DOF app and it's been nice to play with potential effects on elevation from wind. I read a comment somewhere in this string about stadia marks and hold overs..I agree this can simplify elevation adjustments however that doesn't fix bad data..if you don't know what your correct data it doesn't matter if you dial or reference stadia, you'll miss by the same amount, but probably a little faster if you're holding instead of dialing. Your 415 data is not to worrisome. That's 1/4 MOA off. Stick with measuring your variations in MOA, not inches. It's more representative for what you are doing. I would not sweat +/- 1/4 MOA as you play with your BC settings to get everything to line up.</p></blockquote><p></p>
[QUOTE="MarshMello, post: 2275535, member: 67621"] Your plan to take it out to 800+ yards is a solid one. Make sure to zero it again in those conditions first to get the most accurate data. If you are prone especially, be aware of mirage. You'll find the BC adjustments will be most telling past 600. Don't discount mirage and wind as well. Mirage can make the target appear higher and cause you to hold higher. Wind can have some interesting effects on elevation as well at distance. I switched the 4DOF app and it's been nice to play with potential effects on elevation from wind. I read a comment somewhere in this string about stadia marks and hold overs..I agree this can simplify elevation adjustments however that doesn't fix bad data..if you don't know what your correct data it doesn't matter if you dial or reference stadia, you'll miss by the same amount, but probably a little faster if you're holding instead of dialing. Your 415 data is not to worrisome. That's 1/4 MOA off. Stick with measuring your variations in MOA, not inches. It's more representative for what you are doing. I would not sweat +/- 1/4 MOA as you play with your BC settings to get everything to line up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does velocity affect ballistic coefficient?
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