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<blockquote data-quote="el matador" data-source="post: 1322508" data-attributes="member: 12193"><p>I'd say you're plenty close for now. I don't worry much about the scope correction factors. What matters to me is how many clicks it takes to get me to a certain yardage. After finding my load, chronographing it, and zeroing at 200 I put the data into my calc. I then validate my expected drops at 2 different distances (max hunting distance and somewhere a bit closer). Usually its slightly off, so I can play with BC, velocity, and scope correction a bit and usually that makes my ballistic calc line up with the real world. </p><p></p><p>Your twist rate, muzzle velocity, and altitude will all affect the BC of the bullet. Your chronograph is probably not 100% accurate, and clearly there is some error built into the scope adjustments. If you adjust your parameters in the calc so you're making good hits at your max range then these errors don't matter much. If you're shooting competition you may want to get more scientific about it but for hunting and shooting steel the above method works great for me.</p></blockquote><p></p>
[QUOTE="el matador, post: 1322508, member: 12193"] I'd say you're plenty close for now. I don't worry much about the scope correction factors. What matters to me is how many clicks it takes to get me to a certain yardage. After finding my load, chronographing it, and zeroing at 200 I put the data into my calc. I then validate my expected drops at 2 different distances (max hunting distance and somewhere a bit closer). Usually its slightly off, so I can play with BC, velocity, and scope correction a bit and usually that makes my ballistic calc line up with the real world. Your twist rate, muzzle velocity, and altitude will all affect the BC of the bullet. Your chronograph is probably not 100% accurate, and clearly there is some error built into the scope adjustments. If you adjust your parameters in the calc so you're making good hits at your max range then these errors don't matter much. If you're shooting competition you may want to get more scientific about it but for hunting and shooting steel the above method works great for me. [/QUOTE]
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