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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Balllistics Program Question
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<blockquote data-quote="Michael Eichele" data-source="post: 24791" data-attributes="member: 1007"><p>The reason I ask is that there are several things that can do what you are discribing. 2 of them are:</p><p></p><p>1. B.C.s are not always what books say they are. Sometimes barrel length and burn rates improve your B.C. Try adding .050-.055 to your B.C.</p><p></p><p>2. Some MINOR imperfections in a 100 yard zero can throw you off. Try calculating a 1000 yard shot from a 300 yard zero. Unless you are dealing with over 100 degrees in temprature and 10,000 feet in altidude, your 300 yard zero will always be close enough for a starting point for a long range calculation.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 24791, member: 1007"] The reason I ask is that there are several things that can do what you are discribing. 2 of them are: 1. B.C.s are not always what books say they are. Sometimes barrel length and burn rates improve your B.C. Try adding .050-.055 to your B.C. 2. Some MINOR imperfections in a 100 yard zero can throw you off. Try calculating a 1000 yard shot from a 300 yard zero. Unless you are dealing with over 100 degrees in temprature and 10,000 feet in altidude, your 300 yard zero will always be close enough for a starting point for a long range calculation. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Balllistics Program Question
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