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Hunting
Long Range Hunting & Shooting
Over spinning bullets
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<blockquote data-quote="HARPERC" data-source="post: 1181701" data-attributes="member: 30671"><p>I believe there are velocity thresholds + bullet construction + twist rates + barrel quality that will 1) Will spoil accuracy 2) Destroy a bullet completely. Tolerances likely play a role, a bore at minimum (tight), combined with bullets from a run that come out at the maximum may show more tendency to the other stresses involved. </p><p></p><p>I had a .358 Ackley with a 1-12 twist that shot fireform loads at Whelen velocities just fine. Moving out of that zone never worked, the more velocity past that point, accuracy declined. Flyers more frequent etc. i believe twist was a component.</p><p></p><p>Generally though I believe more twist, improves BC (Lytz I believe speaks of this), and at worst doesn't seem to hurt accuracy when using quality bullets (hunting accuracy). </p><p></p><p>The example of a 25-06 given I'd guess you will be OK, but in some of the intense 25 wildcats you might run into issues.</p></blockquote><p></p>
[QUOTE="HARPERC, post: 1181701, member: 30671"] I believe there are velocity thresholds + bullet construction + twist rates + barrel quality that will 1) Will spoil accuracy 2) Destroy a bullet completely. Tolerances likely play a role, a bore at minimum (tight), combined with bullets from a run that come out at the maximum may show more tendency to the other stresses involved. I had a .358 Ackley with a 1-12 twist that shot fireform loads at Whelen velocities just fine. Moving out of that zone never worked, the more velocity past that point, accuracy declined. Flyers more frequent etc. i believe twist was a component. Generally though I believe more twist, improves BC (Lytz I believe speaks of this), and at worst doesn't seem to hurt accuracy when using quality bullets (hunting accuracy). The example of a 25-06 given I'd guess you will be OK, but in some of the intense 25 wildcats you might run into issues. [/QUOTE]
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