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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Federal Terminal ascent required twist rates
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<blockquote data-quote="FEENIX" data-source="post: 2006086" data-attributes="member: 14204"><p>Yes, it is only marginal. I did not see any readily available twist rate recommendations but I ran the information that is available about the bullet and factory ammo information ...</p><p></p><p>[ATTACH=full]221116[/ATTACH]</p><p></p><p>... using Berger's twist rate calculator as you did ...</p><p></p><p>[ATTACH=full]221117[/ATTACH]</p><p></p><p>Unless you hunt at >10K' altitude, you will need a minimum of 1:9.25" to stabilize it. But as [USER=108965]@LVJ76[/USER] noted, it is best to go directly to the source.</p><p></p><p>[ATTACH=full]221118[/ATTACH]</p><p></p><p>I have a SAKO M995 in .300 WM 1:11" and the heaviest I load is the 190 Berger VLD.</p><p></p><p>I have a couple of .300 WSM with 1:10" and supposedly I can stabilize it at 5K' altitude (my average hunting grounds altitude).</p></blockquote><p></p>
[QUOTE="FEENIX, post: 2006086, member: 14204"] Yes, it is only marginal. I did not see any readily available twist rate recommendations but I ran the information that is available about the bullet and factory ammo information ... [ATTACH type="full" alt="TA spec.JPG"]221116[/ATTACH] ... using Berger's twist rate calculator as you did ... [ATTACH type="full" alt="TA at sea level.JPG"]221117[/ATTACH] Unless you hunt at >10K' altitude, you will need a minimum of 1:9.25" to stabilize it. But as [USER=108965]@LVJ76[/USER] noted, it is best to go directly to the source. [ATTACH type="full" alt="Ta at 10K.JPG"]221118[/ATTACH] I have a SAKO M995 in .300 WM 1:11" and the heaviest I load is the 190 Berger VLD. I have a couple of .300 WSM with 1:10" and supposedly I can stabilize it at 5K' altitude (my average hunting grounds altitude). [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Federal Terminal ascent required twist rates
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