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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel twist
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<blockquote data-quote="MagnumManiac" data-source="post: 1169610" data-attributes="member: 10755"><p>Bearing surface has little to do with it, VLD's have less bearing surface, generally, than normal style ogive bullets.</p><p>The most important factor of barrel twist is the total length of a bullet, the longer it is from base to tip, the faster it's spin needs to be to keep it stable.</p><p>Some bullet manufacturers have the 'ideal' twist rate on the box, such as Berger, but, that is not absolute, a slightly slower twist may still work, while a faster twist is rarely a problem, unless excessive for light/shorter bullets.</p><p>The amount of bullet that engages the rifling is moot, as long as it doesn't strip, it will follow the rifling down the bore.</p><p></p><p>Cheers.</p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1169610, member: 10755"] Bearing surface has little to do with it, VLD's have less bearing surface, generally, than normal style ogive bullets. The most important factor of barrel twist is the total length of a bullet, the longer it is from base to tip, the faster it's spin needs to be to keep it stable. Some bullet manufacturers have the 'ideal' twist rate on the box, such as Berger, but, that is not absolute, a slightly slower twist may still work, while a faster twist is rarely a problem, unless excessive for light/shorter bullets. The amount of bullet that engages the rifling is moot, as long as it doesn't strip, it will follow the rifling down the bore. Cheers. gun) [/QUOTE]
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Barrel twist
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