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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
trimming the bullet meplay for better BC
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<blockquote data-quote="Steve Shelp" data-source="post: 29620" data-attributes="member: 22"><p>Dantec,</p><p> I've been busy at work and haven't followed the message boards hardly at all in the last month or so. Don't know what you've read or been told on this.</p><p> I've been using one of Dave's meplat trimmers (one of his first prototypes) for 2+yrs now. We also have tested plastic tipped bullets that we assembled at his shop. It's an ongoing experiment and we have tested using an Oehler M43 at 300yds to measure BC dispersion with "untrimmed meplats", "trimmed meplats", and plastic tipped bullets out of the same rifle at the same time back-to-back to give us hard numbers to go by. The M43 has the acoustics screens setup to measure time of flight and actual BC numbers for every shot fired. I can't argue with the numbers/results anymore. It's clear the trend is in the right direction and that is reducing vertical dispersion.</p><p> By doing this you are not going to make a good rifle into a great rifle. But you will do away with unexplained flyers and help your group become rounded rather than the vertical we normally see when scoring 1000yd BR targets.</p><p></p><p>Hope this helps,</p><p>Steve</p><p></p><p>[ 11-25-2003: Message edited by: Steve Shelp ]</p></blockquote><p></p>
[QUOTE="Steve Shelp, post: 29620, member: 22"] Dantec, I've been busy at work and haven't followed the message boards hardly at all in the last month or so. Don't know what you've read or been told on this. I've been using one of Dave's meplat trimmers (one of his first prototypes) for 2+yrs now. We also have tested plastic tipped bullets that we assembled at his shop. It's an ongoing experiment and we have tested using an Oehler M43 at 300yds to measure BC dispersion with "untrimmed meplats", "trimmed meplats", and plastic tipped bullets out of the same rifle at the same time back-to-back to give us hard numbers to go by. The M43 has the acoustics screens setup to measure time of flight and actual BC numbers for every shot fired. I can't argue with the numbers/results anymore. It's clear the trend is in the right direction and that is reducing vertical dispersion. By doing this you are not going to make a good rifle into a great rifle. But you will do away with unexplained flyers and help your group become rounded rather than the vertical we normally see when scoring 1000yd BR targets. Hope this helps, Steve [ 11-25-2003: Message edited by: Steve Shelp ] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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trimming the bullet meplay for better BC
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