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Hunting
The Basics, Starting Out
what effect does barrel twist have?
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<blockquote data-quote="rscott5028" data-source="post: 534580" data-attributes="member: 24624"><p>I beleive Jim answered your question. He can also build you exactly what you want/need. </p><p> </p><p>But, here's more info. </p><p> </p><p>It's like a nice spiral footbal pass vs a wobbly throw. If you spin it too fast, it doesn't buy you anything while too slow will reduce your accuracy. </p><p> </p><p>Here's a link to some good rule of thumb numbers...</p><p><a href="http://shilen.com/calibersAndTwists.html" target="_blank">Welcome to Shilen Rifles, Inc.</a></p><p> </p><p>Sometimes the bullet makers have a recommended twist rate as seen here...</p><p><a href="http://bergerbullets.com/Products/Hunting%20Bullets.html" target="_blank">Berger Hunting Bullets</a></p><p> </p><p>Here's an online tool for calculating the ideal theoretical twist rate...</p><p><a href="http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi" target="_blank">JBM - Calculations - Stability</a></p><p> </p><p>Hope this helps.</p><p>Richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 534580, member: 24624"] I beleive Jim answered your question. He can also build you exactly what you want/need. But, here's more info. It's like a nice spiral footbal pass vs a wobbly throw. If you spin it too fast, it doesn't buy you anything while too slow will reduce your accuracy. Here's a link to some good rule of thumb numbers... [url=http://shilen.com/calibersAndTwists.html]Welcome to Shilen Rifles, Inc.[/url] Sometimes the bullet makers have a recommended twist rate as seen here... [url=http://bergerbullets.com/Products/Hunting%20Bullets.html]Berger Hunting Bullets[/url] Here's an online tool for calculating the ideal theoretical twist rate... [url=http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi]JBM - Calculations - Stability[/url] Hope this helps. Richard [/QUOTE]
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The Basics, Starting Out
what effect does barrel twist have?
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