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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
WildcatBullet 338 cal 350 gr elevation at 2000 yards ???
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<blockquote data-quote="Brent" data-source="post: 65897" data-attributes="member: 99"><p>Dantac,</p><p></p><p>I know the Oehler chrono's I have do work very well, and the acoustic target is a direct match to an overlayed paper target when set up properly, so it can't be that far off given the speed of sound variations in different MET conditions. I do agree that there is a certain amount that one relies upon in the software calculations etc in order to end up with the BC number it comes up with. </p><p></p><p>In my mind, the two chrono setup for measuring BC's is probably the most accurate, but then we still rely on software calculations to give us the BC value from the velocity loss over a given distance there too. It don't really matter who's ballistic program you use to perform these calculations with you velocity data, as all of them that I have used come up with nearly identical BC numbers, so they must be using the same formula, and all of them must be right, OR... all be wrong.</p><p></p><p>I appreciate the engineering behind this stuff and it is interesting, mostly when I can see its practical application to helping me hold smaller groups, hold POI to POA, better trajectory predictions etc, etc, etc. It's really a mean to an end for me, and is why it's so interesting I guess. </p><p></p><p></p><p></p><p> [ QUOTE ]</p><p> as equipment I use I use impact target ( piezo sensor and measure time of fly between the muzzle and my impact , transmision time is calibrated with a 100 Mhz pulse generator to measure how much time my impact target signal ( during data acquisition and after data aquisition ) take to come back to my computer </p><p></p><p></p><p></p><p>[/ QUOTE ] </p><p></p><p>I'll try to follow you if you have time to fully explain what you know about this some time. Sounds interesting and this is the first time I've heard of this.</p></blockquote><p></p>
[QUOTE="Brent, post: 65897, member: 99"] Dantac, I know the Oehler chrono's I have do work very well, and the acoustic target is a direct match to an overlayed paper target when set up properly, so it can't be that far off given the speed of sound variations in different MET conditions. I do agree that there is a certain amount that one relies upon in the software calculations etc in order to end up with the BC number it comes up with. In my mind, the two chrono setup for measuring BC's is probably the most accurate, but then we still rely on software calculations to give us the BC value from the velocity loss over a given distance there too. It don't really matter who's ballistic program you use to perform these calculations with you velocity data, as all of them that I have used come up with nearly identical BC numbers, so they must be using the same formula, and all of them must be right, OR... all be wrong. I appreciate the engineering behind this stuff and it is interesting, mostly when I can see its practical application to helping me hold smaller groups, hold POI to POA, better trajectory predictions etc, etc, etc. It's really a mean to an end for me, and is why it's so interesting I guess. [ QUOTE ] as equipment I use I use impact target ( piezo sensor and measure time of fly between the muzzle and my impact , transmision time is calibrated with a 100 Mhz pulse generator to measure how much time my impact target signal ( during data acquisition and after data aquisition ) take to come back to my computer [/ QUOTE ] I'll try to follow you if you have time to fully explain what you know about this some time. Sounds interesting and this is the first time I've heard of this. [/QUOTE]
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WildcatBullet 338 cal 350 gr elevation at 2000 yards ???
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