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Rifles, Reloading, Optics, Equipment
Reloading
O-give O-guyve or o-jive
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<blockquote data-quote="Mikecr" data-source="post: 1218125" data-attributes="member: 1521"><p>Your understanding is incorrect.</p><p>A synonymous misunderstanding would be thinking the bullet nose is only a specific point on a bullet nose.</p><p><a href="https://en.wikipedia.org/wiki/Ogive" target="_blank">https://en.wikipedia.org/wiki/Ogive</a></p><p></p><p>It's important to accept this so that you can see target datums for measure are not so easily achieved as assumed. For instance, a reloader may think their tool contact correlates with their land contact point. But common ogive radius variances and many different leade angles available and changing with firing, make that correlation unlikely. </p><p>Folks should understand that much at least.</p><p>Your datums mean nothing to mine or to anybody else. They are as unique as every barrel.</p><p></p><p>So we go back to what matters: reproducing whatever the bullet/barrel combination tells us is best.</p><p>Nearly any tool or local datum works as well for this.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1218125, member: 1521"] Your understanding is incorrect. A synonymous misunderstanding would be thinking the bullet nose is only a specific point on a bullet nose. [url]https://en.wikipedia.org/wiki/Ogive[/url] It's important to accept this so that you can see target datums for measure are not so easily achieved as assumed. For instance, a reloader may think their tool contact correlates with their land contact point. But common ogive radius variances and many different leade angles available and changing with firing, make that correlation unlikely. Folks should understand that much at least. Your datums mean nothing to mine or to anybody else. They are as unique as every barrel. So we go back to what matters: reproducing whatever the bullet/barrel combination tells us is best. Nearly any tool or local datum works as well for this. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
O-give O-guyve or o-jive
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