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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Improved Stability Formula for Plastic Tipped Bullets
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<blockquote data-quote="Mikecr" data-source="post: 738940" data-attributes="member: 1521"><p>This is opposite of reality.</p><p>The closer Cg is to a bullet tip, the greater it's stability.</p><p>In extreme, if you moved most of a bullet's weight to the nose, leaving void the bearing and boat tail, you would be launching a yard dart, and need no rifling at all.</p><p></p><p>There are folks out there 'turning' new bullets daily. They could make a 140gr 26cal bullet, with a good BC, that wouldn't benefit from rifling. This is where yet another adjustment to Miller's rule of thumb would be needed. And this can go on & on with base angles and grooves, etc..</p><p></p><p>But the point is, there is a real explanation for observed affects with plastic tips.</p><p>I just don't know what it is.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p><p>Yet</p></blockquote><p></p>
[QUOTE="Mikecr, post: 738940, member: 1521"] This is opposite of reality. The closer Cg is to a bullet tip, the greater it's stability. In extreme, if you moved most of a bullet's weight to the nose, leaving void the bearing and boat tail, you would be launching a yard dart, and need no rifling at all. There are folks out there 'turning' new bullets daily. They could make a 140gr 26cal bullet, with a good BC, that wouldn't benefit from rifling. This is where yet another adjustment to Miller's rule of thumb would be needed. And this can go on & on with base angles and grooves, etc.. But the point is, there is a real explanation for observed affects with plastic tips. I just don't know what it is.. :( Yet [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Improved Stability Formula for Plastic Tipped Bullets
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