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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
questions about bullet weight vs twist ratio
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<blockquote data-quote="joejo" data-source="post: 636664" data-attributes="member: 26396"><p>apparently everything i have learned about twist rate vs bullet weight/ legnth is not all that accurate. i have been reading applied ballistics and have been looking over the .264 bullet data within the book. it seems as though a 123 scenar out of an 8 twist barrel is not nearly as stable as its bigger brother the 139. how can this be? i have always been under the assumption that if you went to a longer heavier bullet you would become less stable in the same twist barrel. it also shows poor stability with the cauterucio bullets in 8 twist barrels, even though they only range in the 119 to 130 gr range. can someone explain this? should i go with a 123 smk rather than a 123 lapua? this is the weioght range i want to be in. apparently the 123 smk is almost 1.5 times as stable in an 8 twist over the 123 lapua.</p><p>this trend is also consistant with the berger line. the 140 is apparently more stable than a 130?</p></blockquote><p></p>
[QUOTE="joejo, post: 636664, member: 26396"] apparently everything i have learned about twist rate vs bullet weight/ legnth is not all that accurate. i have been reading applied ballistics and have been looking over the .264 bullet data within the book. it seems as though a 123 scenar out of an 8 twist barrel is not nearly as stable as its bigger brother the 139. how can this be? i have always been under the assumption that if you went to a longer heavier bullet you would become less stable in the same twist barrel. it also shows poor stability with the cauterucio bullets in 8 twist barrels, even though they only range in the 119 to 130 gr range. can someone explain this? should i go with a 123 smk rather than a 123 lapua? this is the weioght range i want to be in. apparently the 123 smk is almost 1.5 times as stable in an 8 twist over the 123 lapua. this trend is also consistant with the berger line. the 140 is apparently more stable than a 130? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
questions about bullet weight vs twist ratio
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