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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
true bc of barnes 180 tsx?
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<blockquote data-quote="Jon A" data-source="post: 75616" data-attributes="member: 319"><p>[ QUOTE ]</p><p>This was a bit crude but it shows the BC to be more like 0.410 rather than 0.55 which is what Barnes has published. </p><p></p><p>[/ QUOTE ]</p><p>I recently did a quick test on that bullet over the Oehler at 5 and 205 yds. Not an especially sophisticated test and a small sample size so don't put faith in these numbers down to the last .001 or anything, but they are enough to give me a pretty good idea. </p><p></p><p>The 180 TSX measured .411. In the very same test the 180 Scirocco measured .539 and the 200 AccuBond .550. All numbers corrected to ICAO.</p><p></p><p>Like I said, I'd expect the averages to shift a little had I done 20-shot strings, etc. But the Scirocco launched at the same velocity put about 100 fps on the TSX at <em>only <strong>200 yds</strong></em> at 4400 ft altitude (the difference would be greater closer to sea level). </p><p></p><p>FWIW, there you go.</p></blockquote><p></p>
[QUOTE="Jon A, post: 75616, member: 319"] [ QUOTE ] This was a bit crude but it shows the BC to be more like 0.410 rather than 0.55 which is what Barnes has published. [/ QUOTE ] I recently did a quick test on that bullet over the Oehler at 5 and 205 yds. Not an especially sophisticated test and a small sample size so don't put faith in these numbers down to the last .001 or anything, but they are enough to give me a pretty good idea. The 180 TSX measured .411. In the very same test the 180 Scirocco measured .539 and the 200 AccuBond .550. All numbers corrected to ICAO. Like I said, I'd expect the averages to shift a little had I done 20-shot strings, etc. But the Scirocco launched at the same velocity put about 100 fps on the TSX at [i]only [b]200 yds[/b][/i] at 4400 ft altitude (the difference would be greater closer to sea level). FWIW, there you go. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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true bc of barnes 180 tsx?
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