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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 Cal 260's
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<blockquote data-quote="MontanaRifleman" data-source="post: 473661" data-attributes="member: 11717"><p>Talked with Anthony @ GS Bullets here in the states questioning him on the 30 cal 177 HV's. Told him I was planning on having a barrel made for a 300 WSM build and what would be the ideal twist for short and long range hunting applications. He mentioned that the ideal twist rate for short range vs LR terminal performance will be different. The short range requires a higher SF/twist rate which would lead to the bullet over stabalizing down range and not nosing over properly resulting in tumbling on impact.... and the ideal SF/twist rate for the LR terminal performance would result in under stabilization for short range. In the case of a 300 WSM launching the 177's @ 3300 fps the ideal LR twist would be 10 and the short range would be 9. Just something else to think about <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>Rich, I'm planning to finally shoot the pills you sent me probabluy at the end of next month with the GS bullets throught my RUM. I'll keep ya posted <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>-Mark</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 473661, member: 11717"] Talked with Anthony @ GS Bullets here in the states questioning him on the 30 cal 177 HV's. Told him I was planning on having a barrel made for a 300 WSM build and what would be the ideal twist for short and long range hunting applications. He mentioned that the ideal twist rate for short range vs LR terminal performance will be different. The short range requires a higher SF/twist rate which would lead to the bullet over stabalizing down range and not nosing over properly resulting in tumbling on impact.... and the ideal SF/twist rate for the LR terminal performance would result in under stabilization for short range. In the case of a 300 WSM launching the 177's @ 3300 fps the ideal LR twist would be 10 and the short range would be 9. Just something else to think about :) Rich, I'm planning to finally shoot the pills you sent me probabluy at the end of next month with the GS bullets throught my RUM. I'll keep ya posted :) -Mark [/QUOTE]
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30 Cal 260's
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