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The Basics, Starting Out
Help me understand Ballistic Coeffecient?
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<blockquote data-quote="abinok" data-source="post: 81535" data-attributes="member: 16"><p>TrpD,</p><p>You are on the right tract. The BC of a bullet is just a relative number indicating its aerodynamic efficency. Higher numbers indicate that the bullet will retain its speed better than bullets with a lower BC. Think of the high bc bullet as a golf ball, and the low bc bullet as a pingpong ball. BC reduces the amount of delay in time of flight, and as such is the primary determining factor in how far a bullet drifts in the wind, and due to the fact that the delay in time of flight is shorter, high BC also flattens trajectory to some extent, though not as dramatically as increased velocity. For all the information you are likly to ever need, have a look at Sierra's sister site <a href="http://www.exteriorballistics.com" target="_blank">www.exteriorballistics.com</a> or more speciffically,</p><p><a href="http://www.exteriorballistics.com/ebexplained/5th/221.cfm" target="_blank">http://www.exteriorballistics.com/ebexplained/5th/221.cfm</a></p><p>or the menu link</p><p><a href="http://www.exteriorballistics.com/ebexplained/index.cfm" target="_blank">http://www.exteriorballistics.com/ebexplained/index.cfm</a></p></blockquote><p></p>
[QUOTE="abinok, post: 81535, member: 16"] TrpD, You are on the right tract. The BC of a bullet is just a relative number indicating its aerodynamic efficency. Higher numbers indicate that the bullet will retain its speed better than bullets with a lower BC. Think of the high bc bullet as a golf ball, and the low bc bullet as a pingpong ball. BC reduces the amount of delay in time of flight, and as such is the primary determining factor in how far a bullet drifts in the wind, and due to the fact that the delay in time of flight is shorter, high BC also flattens trajectory to some extent, though not as dramatically as increased velocity. For all the information you are likly to ever need, have a look at Sierra's sister site [url="http://www.exteriorballistics.com"]www.exteriorballistics.com[/url] or more speciffically, [url="http://www.exteriorballistics.com/ebexplained/5th/221.cfm"]http://www.exteriorballistics.com/ebexplained/5th/221.cfm[/url] or the menu link [url="http://www.exteriorballistics.com/ebexplained/index.cfm"]http://www.exteriorballistics.com/ebexplained/index.cfm[/url] [/QUOTE]
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