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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ideal twist and groove 338 lapua?
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<blockquote data-quote="jcoop" data-source="post: 625456" data-attributes="member: 13125"><p>So I am ordering a Pac Nor barrel tomorrow for my 338 lapua project. What is the ideal twist and number of groves in your opinion? They offer</p><p> 3 groove 6" 10" 11" 12" 14"</p><p>5 groove 6.50" 7" 9" 9.50" 10" 12"</p><p>And some others. I will probably be shooting 300gr smks and maby 300 Nosler Accubonds. My edge has a 10 twist and does great but was wondering what the optimum twist is. Also is there a chance someone is going to offer a bullet With a higher bc that requires a faster twist that would still be acceptable with the bullets I listed? This is what got me thinking maybe 9.5" or maby 9", or is that too fast? And 3 or 5 groove? I have both in 6mm barrels and prefer the 3, but do not have any experience with it in 338 cal.</p><p></p><p>At this point I'm leaning towards a 5 groove 10 twist because I know it works.</p><p>Thanks for any insight.</p></blockquote><p></p>
[QUOTE="jcoop, post: 625456, member: 13125"] So I am ordering a Pac Nor barrel tomorrow for my 338 lapua project. What is the ideal twist and number of groves in your opinion? They offer 3 groove 6" 10" 11" 12" 14" 5 groove 6.50" 7" 9" 9.50" 10" 12" And some others. I will probably be shooting 300gr smks and maby 300 Nosler Accubonds. My edge has a 10 twist and does great but was wondering what the optimum twist is. Also is there a chance someone is going to offer a bullet With a higher bc that requires a faster twist that would still be acceptable with the bullets I listed? This is what got me thinking maybe 9.5" or maby 9", or is that too fast? And 3 or 5 groove? I have both in 6mm barrels and prefer the 3, but do not have any experience with it in 338 cal. At this point I'm leaning towards a 5 groove 10 twist because I know it works. Thanks for any insight. [/QUOTE]
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Ideal twist and groove 338 lapua?
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