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Long Range Hunting & Shooting
6.5 PRC Barrel Questions
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<blockquote data-quote="lancetkenyon" data-source="post: 2639684" data-attributes="member: 68875"><p>Terminal performance.is said to be better with a faster twist rate. </p><p>The 150 SMK states 1:7" minimum twist. A mono over 130gr states faster than 1:8". </p><p>Stability deteriorates as speed deteriorates. Faster twist helps retain stability longer. </p><p>No reason NOT to go 1:7.5" if you plan for any of these during a new build/rebarrel. But if you already have a 1:8", you usually don't need to swap until it is time.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 2639684, member: 68875"] Terminal performance.is said to be better with a faster twist rate. The 150 SMK states 1:7" minimum twist. A mono over 130gr states faster than 1:8". Stability deteriorates as speed deteriorates. Faster twist helps retain stability longer. No reason NOT to go 1:7.5" if you plan for any of these during a new build/rebarrel. But if you already have a 1:8", you usually don't need to swap until it is time. [/QUOTE]
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