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Rifles, Reloading, Optics, Equipment
Equipment Discussions
V3 Magneto Speed POI Change?
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<blockquote data-quote="KSAv8r" data-source="post: 2438533" data-attributes="member: 86098"><p>Everyone.....reading some of the responses about POI shift. I would like to suggest you are using the MagnetoSpeed for a purpose it was not designed for. During load development, whether you are using a LabRadar, Chrono, or MagnetoSpeed, you should be collecting speed data only to determine nodes where the bullet speed stays approximately the same as the amount of powder increases. This is usually where you will also find a small extreme spread (ES) and standard deviation (SD) of the 3 or more shots taken at the same powder charge. Point of impact or accuracy makes no difference at this point. After finding the speed node, load 5 rounds at +/- 0.1 grain increments above and below the center of the node and re-shoot using your MagnetoSpeed, LabRadar, or Chrono to confirm which powder charge gives the best speed with the lowest ES/SD. You don't need to worry about bullet speed again unless something changes, like changing lots of powder, lots of bullets, primers, brass, etc.</p><p></p><p>Now you are ready to start playing with bullet seating depth to tune your rifle for best accuracy. LabRadar, MagnetoSpeed or Chrono not needed so POI shift is not a factor. If you are trying to work with bullet speed and accuracy at the same time, you are likely wasting reloading supplies and your time plus will likely be chasing your tail. Change one variable at a time and record your data.</p><p></p><p>Some will argue that you should do a bullet seating test first before selecting a powder and charge weight, which is OK. Both processes will arrive at the same place from testing we have done. We have both a LabRadar and MagnetoSpeed. Personally, I prefer the MagnetoSpeed since I have had way to many shots where the LabRadar failed to capture any data or the LabRadar triggered when a person at the range next to us was shooting . We finally went to using the JKL Trigger and it works better, but not perfect. With an AR type rifle, letting the BCG go into battery will cause the LabRadar unit to attempt to capture a shot, which has to later be deleted. I can confidently say if the MagnetoSpeed is setup properly, it has never failed to capture a shot for us. No wasted time at the range and no wasted reloading supplies, which you all know are in very short supply these days. YMMV and to be up-front with everyone, we have no contacts or financial interest in either company and do not sell either product. </p><p></p><p>Hope this is of some value to you all. Good luck with your load development.</p></blockquote><p></p>
[QUOTE="KSAv8r, post: 2438533, member: 86098"] Everyone.....reading some of the responses about POI shift. I would like to suggest you are using the MagnetoSpeed for a purpose it was not designed for. During load development, whether you are using a LabRadar, Chrono, or MagnetoSpeed, you should be collecting speed data only to determine nodes where the bullet speed stays approximately the same as the amount of powder increases. This is usually where you will also find a small extreme spread (ES) and standard deviation (SD) of the 3 or more shots taken at the same powder charge. Point of impact or accuracy makes no difference at this point. After finding the speed node, load 5 rounds at +/- 0.1 grain increments above and below the center of the node and re-shoot using your MagnetoSpeed, LabRadar, or Chrono to confirm which powder charge gives the best speed with the lowest ES/SD. You don't need to worry about bullet speed again unless something changes, like changing lots of powder, lots of bullets, primers, brass, etc. Now you are ready to start playing with bullet seating depth to tune your rifle for best accuracy. LabRadar, MagnetoSpeed or Chrono not needed so POI shift is not a factor. If you are trying to work with bullet speed and accuracy at the same time, you are likely wasting reloading supplies and your time plus will likely be chasing your tail. Change one variable at a time and record your data. Some will argue that you should do a bullet seating test first before selecting a powder and charge weight, which is OK. Both processes will arrive at the same place from testing we have done. We have both a LabRadar and MagnetoSpeed. Personally, I prefer the MagnetoSpeed since I have had way to many shots where the LabRadar failed to capture any data or the LabRadar triggered when a person at the range next to us was shooting . We finally went to using the JKL Trigger and it works better, but not perfect. With an AR type rifle, letting the BCG go into battery will cause the LabRadar unit to attempt to capture a shot, which has to later be deleted. I can confidently say if the MagnetoSpeed is setup properly, it has never failed to capture a shot for us. No wasted time at the range and no wasted reloading supplies, which you all know are in very short supply these days. YMMV and to be up-front with everyone, we have no contacts or financial interest in either company and do not sell either product. Hope this is of some value to you all. Good luck with your load development. [/QUOTE]
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V3 Magneto Speed POI Change?
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