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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What keeps a round from holding MOA
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<blockquote data-quote="sdiehn" data-source="post: 36649" data-attributes="member: 3005"><p>the bullet will lose the amount of rotation that is need to keep it stable.This is why you have difrent twist rates for difrent leanght bullets </p><p></p><p>I have shot the 107 seirras out of a 243 witha twist of 1-11 at 100 yards they were tack drivers but at 200 they were all over the place this is a extreme case as the bullet should be shot threw a 1-9 twist and 10 would be marginal.</p><p></p><p>I would be willing to bet if you looked close at the targets when the load loses accuracy at a spacific range say a 400 yard target that you find that the holes are not round. you wil need to keep a specific RPS to keep the bullet stable</p></blockquote><p></p>
[QUOTE="sdiehn, post: 36649, member: 3005"] the bullet will lose the amount of rotation that is need to keep it stable.This is why you have difrent twist rates for difrent leanght bullets I have shot the 107 seirras out of a 243 witha twist of 1-11 at 100 yards they were tack drivers but at 200 they were all over the place this is a extreme case as the bullet should be shot threw a 1-9 twist and 10 would be marginal. I would be willing to bet if you looked close at the targets when the load loses accuracy at a spacific range say a 400 yard target that you find that the holes are not round. you wil need to keep a specific RPS to keep the bullet stable [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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What keeps a round from holding MOA
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