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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist Rate and stability
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<blockquote data-quote="Deleted member 46119" data-source="post: 892363"><p>If I understand it correctly, the lower density of plastic does not generate a destabilizing mass forward of the CG. Takes less to 'go to sleep'.</p><p></p><p>Just grabbing the last JBM bullet flight times on my page.</p><p></p><p>~200,000 to 250,000 rpm</p><p>~20,000 to 25,000 revolutions in 100 yards. (.089)</p><p>~200,000 to 250,000 revolutions in 800 yards. (1.038)</p><p></p><p>Made me think about the going to sleep part. Like a thrown foot ball that starts a little wobbly then smooths out. I know this is a poor analogy but can't think of anything closer.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 892363"] If I understand it correctly, the lower density of plastic does not generate a destabilizing mass forward of the CG. Takes less to 'go to sleep'. Just grabbing the last JBM bullet flight times on my page. ~200,000 to 250,000 rpm ~20,000 to 25,000 revolutions in 100 yards. (.089) ~200,000 to 250,000 revolutions in 800 yards. (1.038) Made me think about the going to sleep part. Like a thrown foot ball that starts a little wobbly then smooths out. I know this is a poor analogy but can't think of anything closer. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist Rate and stability
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