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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Surviving the transonic barrier.
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<blockquote data-quote="Chas1" data-source="post: 356475" data-attributes="member: 15738"><p><span style="font-size: 10px">Decreasing the twist rate makes the bullet less stable at range, especially as the bullet passes into and through transonic (800-1100 fps) speeds. The reason for this is that unless the bullet has a high twist rate through the transonic speeds it does not have sufficient rotational momentum to stabilize itself through the intense turbulence created at transonic speeds. The instability presented by slower twist rates makes a downrange projectile inherently less accurate and effective. But spinning a bullet too fast also presents some problems.</span></p><p><span style="font-size: 10px"></span></p><p><span style="font-size: 10px">To read the complete article see link:</span></p><p><span style="font-size: 10px"></span></p><p><span style="font-size: 10px"><a href="http://www.mamut.net/markbrooks/newsdet37.htm" target="_blank">http://www.mamut.net/markbrooks/newsdet37.htm</a></span></p></blockquote><p></p>
[QUOTE="Chas1, post: 356475, member: 15738"] [SIZE=2]Decreasing the twist rate makes the bullet less stable at range, especially as the bullet passes into and through transonic (800-1100 fps) speeds. The reason for this is that unless the bullet has a high twist rate through the transonic speeds it does not have sufficient rotational momentum to stabilize itself through the intense turbulence created at transonic speeds. The instability presented by slower twist rates makes a downrange projectile inherently less accurate and effective. But spinning a bullet too fast also presents some problems. To read the complete article see link: [URL]http://www.mamut.net/markbrooks/newsdet37.htm[/URL][/SIZE] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Surviving the transonic barrier.
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