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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
I ordered an 11'' twist .30
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<blockquote data-quote="Michael Eichele" data-source="post: 482739" data-attributes="member: 1007"><p>IMHO the 12x will handle the 190 just fine. This has been proven mathematically AND in the field. A very reliable twist/stability factor calculator shows over 1.4 gs. This is plenty. Berger Bullets recommends the 12x for their 190's which are longer than the SMK.</p><p></p><p>I use to run the 200 Nosler ACCUBONDS in my 300 with a 12 twist with 1/2MOA accuracy and never showed any signs of instability. Even in cold sea level air. You will need an 11x for the 208-210 grain pills.</p><p></p><p>That said, I would be ****ed that I spent what we spend on barrels and got one that did not match the specs that I ordered and would demand an exchange. But that is just me.</p><p></p><p>M</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 482739, member: 1007"] IMHO the 12x will handle the 190 just fine. This has been proven mathematically AND in the field. A very reliable twist/stability factor calculator shows over 1.4 gs. This is plenty. Berger Bullets recommends the 12x for their 190's which are longer than the SMK. I use to run the 200 Nosler ACCUBONDS in my 300 with a 12 twist with 1/2MOA accuracy and never showed any signs of instability. Even in cold sea level air. You will need an 11x for the 208-210 grain pills. That said, I would be ****ed that I spent what we spend on barrels and got one that did not match the specs that I ordered and would demand an exchange. But that is just me. M [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
I ordered an 11'' twist .30
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