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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
VLD Bullet Stabilization and a Short Range Shot
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<blockquote data-quote="MontanaRifleman" data-source="post: 357828" data-attributes="member: 11717"><p>You bring up an interesting question and Fitch's reply is baiscally right.</p><p> </p><p>Having said, some high BC bullets requiring a tight twist will stabilize for hunting purposes, further down range in a barrel with a "borderline" twist rate. For example the GS HV 177.... For general shooting and hunting beyond 500 yds the manufacturere recommends a twist of 11 (SF 1.1). For hunting inside of 500 yds a twist of about 9.25 (SF 1.4) is recommended. I assume this is for terminal performance stability so the bullet will not tumble and remain in a straightline path through the game animal.</p><p> </p><p><a href="http://www.jbmballistics.com/cgi-bin/jbmtraj-5.0.cgi" target="_blank">JBM - Calculations - Trajectory</a></p><p> </p><p>Maybe Bryan Litz can shed some more light on the subject. But to the main point of pitch and yaw, I dont think that is really related to bullet "stability" in general.</p><p> </p><p>-Mark</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 357828, member: 11717"] You bring up an interesting question and Fitch's reply is baiscally right. Having said, some high BC bullets requiring a tight twist will stabilize for hunting purposes, further down range in a barrel with a "borderline" twist rate. For example the GS HV 177.... For general shooting and hunting beyond 500 yds the manufacturere recommends a twist of 11 (SF 1.1). For hunting inside of 500 yds a twist of about 9.25 (SF 1.4) is recommended. I assume this is for terminal performance stability so the bullet will not tumble and remain in a straightline path through the game animal. [url=http://www.jbmballistics.com/cgi-bin/jbmtraj-5.0.cgi]JBM - Calculations - Trajectory[/url] Maybe Bryan Litz can shed some more light on the subject. But to the main point of pitch and yaw, I dont think that is really related to bullet "stability" in general. -Mark [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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VLD Bullet Stabilization and a Short Range Shot
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