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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-243 middlestead vs 22 cheetah vs ...
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<blockquote data-quote="sable tireur" data-source="post: 1193140" data-attributes="member: 27307"><p>blacknzr1,</p><p></p><p>Two things contribute to being able to use the AMAX in conditions that Hornady states will end in a blown up bullet:</p><p></p><p>I use a 1:10 twist rate since the velocity achieved allows for this. That way the bullet isn't wound up quite so fast as the 1:8" twist rate. Smaller cartridges don't create enough velocity to stabilize this bullet in the slower twist so you need the faster twist rate. Hornady is trying to cover their behind with their disclaimer and I don't blame them.</p><p></p><p>I use Bartlein barrels which feature the 5R rifling configuration. There are other makers to choose from as well who use the same 5R but I have standardized on the Bartlein's for their consistency.</p><p></p><p>For Match or Competition barrels in .22 or 6mm though I have standardized on the 4-groove standard rifling instead of the 5R. I get a tad more consistent accuracy at the extended yardages over the 5R. I don't use the AMAX either, I'm using Berger or JLK in both calibers.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="sable tireur, post: 1193140, member: 27307"] blacknzr1, Two things contribute to being able to use the AMAX in conditions that Hornady states will end in a blown up bullet: I use a 1:10 twist rate since the velocity achieved allows for this. That way the bullet isn't wound up quite so fast as the 1:8" twist rate. Smaller cartridges don't create enough velocity to stabilize this bullet in the slower twist so you need the faster twist rate. Hornady is trying to cover their behind with their disclaimer and I don't blame them. I use Bartlein barrels which feature the 5R rifling configuration. There are other makers to choose from as well who use the same 5R but I have standardized on the Bartlein's for their consistency. For Match or Competition barrels in .22 or 6mm though I have standardized on the 4-groove standard rifling instead of the 5R. I get a tad more consistent accuracy at the extended yardages over the 5R. I don't use the AMAX either, I'm using Berger or JLK in both calibers. Regards. [/QUOTE]
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22-243 middlestead vs 22 cheetah vs ...
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