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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why doesn't accuracy always hold up?
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<blockquote data-quote="BountyHunter" data-source="post: 29123" data-attributes="member: 12"><p><strong>Re: Why doesn\'t accuracy always hold up?</strong></p><p></p><p>From the obvious reasons everyone has listed here are some more for anyone shooting long range. Basically bullet uniformity is the key to exceptional LR grouping.</p><p></p><p>1. Variations in the length of the bullets bearing surface within a given lot of bullets. This will effect the bc and often give vertical. I have seen variations as much as .020 in one box of 100 sierra bullets.</p><p></p><p>2. Variance in the bullet metplats. Same as above.</p><p></p><p>3. Variance in bullet weights in a given box or lot.</p><p></p><p>There have been several very good LR smiths and shooters that long discovered and been preaching that the best way to accuracy is the "best quality and most uniform" bullets.</p><p></p><p>Right now there is a move to Flat base LR match bullets in fast slow twist barrels. BIB has a great 187 that is shooting fantastic in 1-12 and up to 1-14 twist 30 cal barrels at 1000. Several 6.5 flat base bullets are coming out this year for 1-9 twists.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 29123, member: 12"] [b]Re: Why doesn\'t accuracy always hold up?[/b] From the obvious reasons everyone has listed here are some more for anyone shooting long range. Basically bullet uniformity is the key to exceptional LR grouping. 1. Variations in the length of the bullets bearing surface within a given lot of bullets. This will effect the bc and often give vertical. I have seen variations as much as .020 in one box of 100 sierra bullets. 2. Variance in the bullet metplats. Same as above. 3. Variance in bullet weights in a given box or lot. There have been several very good LR smiths and shooters that long discovered and been preaching that the best way to accuracy is the "best quality and most uniform" bullets. Right now there is a move to Flat base LR match bullets in fast slow twist barrels. BIB has a great 187 that is shooting fantastic in 1-12 and up to 1-14 twist 30 cal barrels at 1000. Several 6.5 flat base bullets are coming out this year for 1-9 twists. BH [/QUOTE]
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Why doesn't accuracy always hold up?
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