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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Vertical stringing
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<blockquote data-quote="Bull45cal." data-source="post: 314246" data-attributes="member: 9768"><p>So, you are saing that your are getting groups 0.1" wide by 0.5" tall @ 100yrds, and 0.1" wide by 0.6" tall @ 200yrds? Sound pretty good. I don't see how your going to know anything concrete without knowing velocity spread. That's what I would guess, but you won't know for sure until you measure. I was having the same problem (bigger group size though) where the groups looked like a football. I finally broke bad and bought a chrony. Great investment, but I don't know how much help it will be in this situtation, since your talking about a change in velocity that will mostly be within the tolerance of your testing capability (unless your firing from a vise, that is bolted down, and your target doesn't shift "any" on impact). My Chrony at best is within 0.5% accurate. Just something to consider, since that is 15fps @ 3000fps.</p></blockquote><p></p>
[QUOTE="Bull45cal., post: 314246, member: 9768"] So, you are saing that your are getting groups 0.1" wide by 0.5" tall @ 100yrds, and 0.1" wide by 0.6" tall @ 200yrds? Sound pretty good. I don't see how your going to know anything concrete without knowing velocity spread. That's what I would guess, but you won't know for sure until you measure. I was having the same problem (bigger group size though) where the groups looked like a football. I finally broke bad and bought a chrony. Great investment, but I don't know how much help it will be in this situtation, since your talking about a change in velocity that will mostly be within the tolerance of your testing capability (unless your firing from a vise, that is bolted down, and your target doesn't shift "any" on impact). My Chrony at best is within 0.5% accurate. Just something to consider, since that is 15fps @ 3000fps. [/QUOTE]
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Vertical stringing
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