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Hunting
Long Range Hunting & Shooting
PRC twist rate 7,7.5,8?
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<blockquote data-quote="KurtB" data-source="post: 1692159" data-attributes="member: 2106"><p>Eric, Based on bullets blowing up in flight with fast twists and hot barrels, it would seem they are impacted by RPMs. My opinion though and never blew any up in air. </p><p></p><p>That said it looks like the Berger twist calculator says the 156 EOL should have a 1.78 SG with an 8 twist. A 140 vld has a 2.03 SG. Those being the SG numbers, I think my 8 twist will be fine.</p><p></p><p>In looking it sounds like anything over 1.5 or so is considered stable. What would greatly exceeding 1.5 SG provide? Honest question as I have no idea.</p></blockquote><p></p>
[QUOTE="KurtB, post: 1692159, member: 2106"] Eric, Based on bullets blowing up in flight with fast twists and hot barrels, it would seem they are impacted by RPMs. My opinion though and never blew any up in air. That said it looks like the Berger twist calculator says the 156 EOL should have a 1.78 SG with an 8 twist. A 140 vld has a 2.03 SG. Those being the SG numbers, I think my 8 twist will be fine. In looking it sounds like anything over 1.5 or so is considered stable. What would greatly exceeding 1.5 SG provide? Honest question as I have no idea. [/QUOTE]
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PRC twist rate 7,7.5,8?
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