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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cronograph's ??
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<blockquote data-quote="Pdvdh" data-source="post: 782277" data-attributes="member: 4191"><p>The biggest single reason I would not purchase a bullet measuring device that's fastened to the rifle barrel, is that I expect it would affect both bullet point of impact, and accuracy; which would be different than shooting the same bullet/load without that device being fastened to the end of the barrel. This means I couldn't determine the accuracy potential of any load out of my rifle with the device fastened to the end of the barrel, and I couldn't measure MV and determine ES, and SD at the same time I tested for accuracy. That's a major compromise for me. By measuring MV throughout my load development process, I can also calculate the extreme spread and the standard deviation in muzzle velocity. If the extreme spread and standard deviation in MV are too great, I reject that load even if it proves to be accurate at 100 or 300 yards, because at long yardages the load will produce excessive vertical stringing due to the variation in MV.</p><p></p><p>The second reason that precludes my purchase and use of a device fastened to the end of the muzzle, is I can only measure bullet velocity at the muzzle. I commonly measure the velocity of the bullet at distances down range, from 100 yards all the way out to 1000 yards. </p><p></p><p>If a guy is only interested in MV, and willing to forgo the ability to measure MV while also testing bullet accuracy on down-range targets, this device could be very convenient. I've never used it so I've got no idea as to the reliability, precision, or accuracy of this specific product. The reliability, accuracy, and precision could only be determined by using the device concurrent with an additional bullet velocity measuring device. You're aware of that, as you state your intention to test it along side your 35P until satisfied the new unit is accurate, or inaccurate.</p><p></p><p>Once again, <strong>FEENIX</strong> may not care about any of this, and if he doesn't, no one is forcing him or any other member to read it. I make this statement without regard to whether or not he's "<em>one of them good people</em>" referred to in his Post #63, or one of the other sorts of characters - whatever that might mean to Marshall <strong>FEENIX</strong>.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 782277, member: 4191"] The biggest single reason I would not purchase a bullet measuring device that's fastened to the rifle barrel, is that I expect it would affect both bullet point of impact, and accuracy; which would be different than shooting the same bullet/load without that device being fastened to the end of the barrel. This means I couldn't determine the accuracy potential of any load out of my rifle with the device fastened to the end of the barrel, and I couldn't measure MV and determine ES, and SD at the same time I tested for accuracy. That's a major compromise for me. By measuring MV throughout my load development process, I can also calculate the extreme spread and the standard deviation in muzzle velocity. If the extreme spread and standard deviation in MV are too great, I reject that load even if it proves to be accurate at 100 or 300 yards, because at long yardages the load will produce excessive vertical stringing due to the variation in MV. The second reason that precludes my purchase and use of a device fastened to the end of the muzzle, is I can only measure bullet velocity at the muzzle. I commonly measure the velocity of the bullet at distances down range, from 100 yards all the way out to 1000 yards. If a guy is only interested in MV, and willing to forgo the ability to measure MV while also testing bullet accuracy on down-range targets, this device could be very convenient. I've never used it so I've got no idea as to the reliability, precision, or accuracy of this specific product. The reliability, accuracy, and precision could only be determined by using the device concurrent with an additional bullet velocity measuring device. You're aware of that, as you state your intention to test it along side your 35P until satisfied the new unit is accurate, or inaccurate. Once again, [B]FEENIX[/B] may not care about any of this, and if he doesn't, no one is forcing him or any other member to read it. I make this statement without regard to whether or not he's "[I]one of them good people[/I]" referred to in his Post #63, or one of the other sorts of characters - whatever that might mean to Marshall [B]FEENIX[/B]. [/QUOTE]
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