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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New Barnes bullet testing.....
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<blockquote data-quote="Fiftydriver" data-source="post: 476306" data-attributes="member: 10"><p>Nomosendero,</p><p> </p><p>Like I mentioned, I have not done any bullet drop testing to figure an accurate BC from actual drop numbers but sitting these bullets side by side, I see no way how these bullets will have a BC as low as advertised.</p><p> </p><p>Looking at the 200 gr 30 cal, its significantly longer then the 240 gr SMK, its ogive is MUCH more aggressive then the old outdated 240 gr SMK, boattail very similiar but slightly shorter, Meplate much better for the tipped TTSX, I see no way how it can not at least match the .711 BC of the 240 gr SMK......</p><p> </p><p>Same goes comparing the 265 gr to the 300 gr SMK.</p><p> </p><p>I also have some of the new 285 gr tactical TSX bullets in 338. They are roughly the same length as the 265 TTSX but they have a much larger by comparision meplat which can not help BC.</p><p> </p><p>Unless the releif groove on the side of the bullet create some type of drag, I see no way these bullets will have a BC that low. To that point, I do not see how a relief groove on the side of the bullet will effect BC dramatically as the shock wave created by the meplat and ogive should make the ballistic effect of the relief grooves basically irrelevant. Maybe not, we will see.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 476306, member: 10"] Nomosendero, Like I mentioned, I have not done any bullet drop testing to figure an accurate BC from actual drop numbers but sitting these bullets side by side, I see no way how these bullets will have a BC as low as advertised. Looking at the 200 gr 30 cal, its significantly longer then the 240 gr SMK, its ogive is MUCH more aggressive then the old outdated 240 gr SMK, boattail very similiar but slightly shorter, Meplate much better for the tipped TTSX, I see no way how it can not at least match the .711 BC of the 240 gr SMK...... Same goes comparing the 265 gr to the 300 gr SMK. I also have some of the new 285 gr tactical TSX bullets in 338. They are roughly the same length as the 265 TTSX but they have a much larger by comparision meplat which can not help BC. Unless the releif groove on the side of the bullet create some type of drag, I see no way these bullets will have a BC that low. To that point, I do not see how a relief groove on the side of the bullet will effect BC dramatically as the shock wave created by the meplat and ogive should make the ballistic effect of the relief grooves basically irrelevant. Maybe not, we will see. [/QUOTE]
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New Barnes bullet testing.....
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