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Rifles, Reloading, Optics, Equipment
Reloading
Barrel length and twist rate
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<blockquote data-quote="asd9055" data-source="post: 2787637" data-attributes="member: 73445"><p>I don't understand "rifling distance"</p><p>My sugestion is, go to either JBM Ballistics or Berger, find the "Stability Factor" calculator and play with it. You will see what has the greater effect. Twist rate is huge effect.</p><p>When you have a given rifle, your twist rate is fixed. You lenth is fixed. You can play with bullet material, weight, design and velocity.</p><p>In my 22-250, 14 twist, I can only go to 55 grain bullets. If I had a faster twist I could shoot a heavier bullet.</p><p>Bullet length matters.</p><p>If you are at a critical point, velocity might help.</p><p>Playing with the calculator will help highlight the importance of different factors. And it costs nothing</p></blockquote><p></p>
[QUOTE="asd9055, post: 2787637, member: 73445"] I don't understand "rifling distance" My sugestion is, go to either JBM Ballistics or Berger, find the "Stability Factor" calculator and play with it. You will see what has the greater effect. Twist rate is huge effect. When you have a given rifle, your twist rate is fixed. You lenth is fixed. You can play with bullet material, weight, design and velocity. In my 22-250, 14 twist, I can only go to 55 grain bullets. If I had a faster twist I could shoot a heavier bullet. Bullet length matters. If you are at a critical point, velocity might help. Playing with the calculator will help highlight the importance of different factors. And it costs nothing [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Barrel length and twist rate
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