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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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<blockquote data-quote="JBM" data-source="post: 32262" data-attributes="member: 1969"><p><BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Let's say that a shooter decides to use Berger bullets. The company publishes a single G1 BC for its bullets. How will the shooter devine the changes to BC necessary to obtain correct data? And what speed regimes will the shooter use? Well, he would have to spend quite a bit of range time to gather the data. Then, if he changed bullet manufacturer (other than Sierra), he'd have to go through the same arduous process. It seems to me that this approach defeats the entire rationale of having a "predictive" program.<HR></BLOCKQUOTE></p><p></p><p>True. the problem is that I don't think you can find ONE curve to use with all these bullets (the G7 might be close enough) so you're going to have to vary the curve anyway so for every bullet your going to have at least two constants: one (or more) to say how to vary the curve and one BC. What fun.</p></blockquote><p></p>
[QUOTE="JBM, post: 32262, member: 1969"] <BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Let's say that a shooter decides to use Berger bullets. The company publishes a single G1 BC for its bullets. How will the shooter devine the changes to BC necessary to obtain correct data? And what speed regimes will the shooter use? Well, he would have to spend quite a bit of range time to gather the data. Then, if he changed bullet manufacturer (other than Sierra), he'd have to go through the same arduous process. It seems to me that this approach defeats the entire rationale of having a "predictive" program.<HR></BLOCKQUOTE> True. the problem is that I don't think you can find ONE curve to use with all these bullets (the G7 might be close enough) so you're going to have to vary the curve anyway so for every bullet your going to have at least two constants: one (or more) to say how to vary the curve and one BC. What fun. [/QUOTE]
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