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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
what do groups mean?
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<blockquote data-quote="rscott5028" data-source="post: 488559" data-attributes="member: 24624"><p>Everyone should know this. It's common knowledge...</p><p> </p><p>A group that has horizontal distribution means that some of the bullets went left or right of the intended POA/POI. </p><p> </p><p>While a group that's vertically distributed means that some went high or low of the intended POA/POI. </p><p> </p><p>Actually, I read an article once where the guy was explaining how seating depth would cause the dispersion to change from horizontal to vertical and that there was a sweet spot just in between. But, I was never able to reproduce that exactly. ...just too many variables.</p></blockquote><p></p>
[QUOTE="rscott5028, post: 488559, member: 24624"] Everyone should know this. It's common knowledge... A group that has horizontal distribution means that some of the bullets went left or right of the intended POA/POI. While a group that's vertically distributed means that some went high or low of the intended POA/POI. Actually, I read an article once where the guy was explaining how seating depth would cause the dispersion to change from horizontal to vertical and that there was a sweet spot just in between. But, I was never able to reproduce that exactly. ...just too many variables. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
what do groups mean?
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