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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet weight vs length / barrel twist
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<blockquote data-quote="trickytune" data-source="post: 1045208" data-attributes="member: 69289"><p>Ok I see different formulas for calculating barrel twist and have a question. My 1:12 .223 groups well with short 63g bullets but not as well with longer 55g bullets. Now going off bergers website and using their calculator if I shorten the bullet stability increases. So for example if I have a 75g amax thats way too long for stability then remove the tips the lengths will be shorter but weight almost the same. These should group better? Im thinking about testing some Custom comp or Sierra match king bullets that are progressively machined shorter to see how it affects the groups. Anyone done any testing with this?</p></blockquote><p></p>
[QUOTE="trickytune, post: 1045208, member: 69289"] Ok I see different formulas for calculating barrel twist and have a question. My 1:12 .223 groups well with short 63g bullets but not as well with longer 55g bullets. Now going off bergers website and using their calculator if I shorten the bullet stability increases. So for example if I have a 75g amax thats way too long for stability then remove the tips the lengths will be shorter but weight almost the same. These should group better? Im thinking about testing some Custom comp or Sierra match king bullets that are progressively machined shorter to see how it affects the groups. Anyone done any testing with this? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet weight vs length / barrel twist
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