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Rifles, Reloading, Optics, Equipment
Reloading
muzzle velocity veriation
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<blockquote data-quote="varmintH8R" data-source="post: 876487" data-attributes="member: 39801"><p>I completely agree with your assessment that actual performance is more important than chrony readings. BUT - I would not use 100m testing as any indication of that. To really understand if extreme spread is spoiling groups, you'll have to shoot at your max range. </p><p></p><p>I'm attaching a picture of a target shot at 100yards shot doing a max charge test on a 22-250. It is 8 shots, with 8 different charge weights. Total extreme spread was 315fps. There is VERY little verticle dispersion at 100 yds. I have another target shot with 280AI and 168 Bergers that also shows less than 1" at 100 under a similar test (about 265ES). Bottom line - validate your drops at the ranges you wish to shoot, and if there are issues the chrony can be a good tool to diagnose them...</p></blockquote><p></p>
[QUOTE="varmintH8R, post: 876487, member: 39801"] I completely agree with your assessment that actual performance is more important than chrony readings. BUT - I would not use 100m testing as any indication of that. To really understand if extreme spread is spoiling groups, you'll have to shoot at your max range. I'm attaching a picture of a target shot at 100yards shot doing a max charge test on a 22-250. It is 8 shots, with 8 different charge weights. Total extreme spread was 315fps. There is VERY little verticle dispersion at 100 yds. I have another target shot with 280AI and 168 Bergers that also shows less than 1" at 100 under a similar test (about 265ES). Bottom line - validate your drops at the ranges you wish to shoot, and if there are issues the chrony can be a good tool to diagnose them... [/QUOTE]
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Reloading
muzzle velocity veriation
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