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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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<blockquote data-quote="ericpetritz" data-source="post: 475323" data-attributes="member: 5958"><p>Very interesting thread! Many good points made and it is still civil, good stuff. Jon A---some very good points. There isn't much "art" involved in predicting accurate drops. If you have accurate inputs, drop predictions will very closely match actual drops. This is sometimes easier said than done. Some common input errors include inaccurate chronographs, inaccurate scope adjustments (i.e., a 1/4 MOA adjustment doesn't actually move the point of impact 1/4 MOA), inaccurate atmospheric conditions or entering them into the software incorrectly, inaccurate zero distance, inaccurate range finders, incorrect scope height, etc. On the other hand, marksmanship, reading the wind, etc are all about art and practice! </p><p></p><p>In my experience Bryan's BC are very accurate, both the G1's and the G7's, although you have to splice together G1's into velocity dependent bands with VLD's to minimize the error. Not saying he can't make a mistake, but I would look to other errors in the inputs before assuming his BC's are incorrect.</p></blockquote><p></p>
[QUOTE="ericpetritz, post: 475323, member: 5958"] Very interesting thread! Many good points made and it is still civil, good stuff. Jon A---some very good points. There isn't much "art" involved in predicting accurate drops. If you have accurate inputs, drop predictions will very closely match actual drops. This is sometimes easier said than done. Some common input errors include inaccurate chronographs, inaccurate scope adjustments (i.e., a 1/4 MOA adjustment doesn't actually move the point of impact 1/4 MOA), inaccurate atmospheric conditions or entering them into the software incorrectly, inaccurate zero distance, inaccurate range finders, incorrect scope height, etc. On the other hand, marksmanship, reading the wind, etc are all about art and practice! In my experience Bryan's BC are very accurate, both the G1's and the G7's, although you have to splice together G1's into velocity dependent bands with VLD's to minimize the error. Not saying he can't make a mistake, but I would look to other errors in the inputs before assuming his BC's are incorrect. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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