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Rifles, Reloading, Optics, Equipment
Reloading
5 or 3 shot group when determining ES/SD???
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<blockquote data-quote="rscott5028" data-source="post: 625977" data-attributes="member: 24624"><p>Thanks all for the discussion. I may actually be learning something here...</p><p> </p><p>I use the Shooting Chrony knowing it's not precision lab test gear. Nonetheless, it fit my budget. Here's an excerpt from the manual...</p><p> </p><p><a href="http://www.shootingchrony.com/manual_F1M1.htm" target="_blank">USER'S MANUAL</a></p><p></p><p> </p><p><span style="font-size: 10px">So with actual velocity around 3000 fps, it could read 15 fps high or 15 fps low. </span></p><p> </p><p><span style="font-size: 10px">But for a given shot string with consistent lighting and setup, it should measure each shot more consistently. i.e. It may not know exactly how fast they're going, but it pretty much knows how much faster or slower this one is compared to the previous one. Hence, the SD won't be off by nearly so much. </span></p><p> </p><p><span style="font-size: 10px">That to me is another good argument for longer shot strings when I get to the final proving stages of my load. Hopefully, I'm shooting long range at the same time by then as well. </span></p><p> </p><p><span style="font-size: 10px">-- richard</span></p></blockquote><p></p>
[QUOTE="rscott5028, post: 625977, member: 24624"] Thanks all for the discussion. I may actually be learning something here... I use the Shooting Chrony knowing it's not precision lab test gear. Nonetheless, it fit my budget. Here's an excerpt from the manual... [url=http://www.shootingchrony.com/manual_F1M1.htm]USER’S MANUAL[/url] [SIZE=2][/SIZE] [SIZE=2][/SIZE] [SIZE=2]So with actual velocity around 3000 fps, it could read 15 fps high or 15 fps low. [/SIZE] [SIZE=2][/SIZE] [SIZE=2]But for a given shot string with consistent lighting and setup, it should measure each shot more consistently. i.e. It may not know exactly how fast they're going, but it pretty much knows how much faster or slower this one is compared to the previous one. Hence, the SD won't be off by nearly so much. [/SIZE] [SIZE=2][/SIZE] [SIZE=2]That to me is another good argument for longer shot strings when I get to the final proving stages of my load. Hopefully, I'm shooting long range at the same time by then as well. [/SIZE] [SIZE=2][/SIZE] [SIZE=2]-- richard[/SIZE] [SIZE=2][/SIZE] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
5 or 3 shot group when determining ES/SD???
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