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Hunting
Long Range Hunting & Shooting
Improving the 308 Win performance
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<blockquote data-quote="nralifer" data-source="post: 2833364" data-attributes="member: 94556"><p>I apologize for such a late response. BC is highly dependent on caliber in addition to ogival length, curvature of that ogive, weight, skin drag, and boat tail length to mention a few things. The general concept is that as you increase in caliber the cross section of the bullet increases, reducing BC. The advantage of larger calibers is that the maximum BC that can be achieved is higher that a smaller caliber because the max bullet weight achieve is greater. In the .277 caliber we can make a 0.710 G1BC 150 gr bullet with ease but not a 30 cal due to the greater cross section of the bullet. To get to that 0.6G1 the 175 gr BD2 in 308 cal is needed. The best we can do in a 150 gr 30 cal hunting bullet is 0.515G1 which in that weight for a 30 cal bullet is the highest for both copper or lead core bullets. Recall that hunting bullets have to do more things than target bullets.</p></blockquote><p></p>
[QUOTE="nralifer, post: 2833364, member: 94556"] I apologize for such a late response. BC is highly dependent on caliber in addition to ogival length, curvature of that ogive, weight, skin drag, and boat tail length to mention a few things. The general concept is that as you increase in caliber the cross section of the bullet increases, reducing BC. The advantage of larger calibers is that the maximum BC that can be achieved is higher that a smaller caliber because the max bullet weight achieve is greater. In the .277 caliber we can make a 0.710 G1BC 150 gr bullet with ease but not a 30 cal due to the greater cross section of the bullet. To get to that 0.6G1 the 175 gr BD2 in 308 cal is needed. The best we can do in a 150 gr 30 cal hunting bullet is 0.515G1 which in that weight for a 30 cal bullet is the highest for both copper or lead core bullets. Recall that hunting bullets have to do more things than target bullets. [/QUOTE]
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Improving the 308 Win performance
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