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Rifles, Reloading, Optics, Equipment
Reloading
best powder for 7mag 180 bergers
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<blockquote data-quote="MudRunner2005" data-source="post: 1094513" data-attributes="member: 12995"><p>It's the deviation in velocity you get between the slowest shot and fastest shot over the chronograph. You want as low an ES as possible.</p><p> </p><p>Example:</p><p> </p><p>First shot: 3,015</p><p>Second shot: 3,025</p><p>Third shot: 3,033</p><p>Fourth shot: 3,027</p><p>Fifth shot: 3,042</p><p> </p><p>Your average velocity would be: 3,028.4 fps.</p><p> </p><p>Your extreme spread is: 27 fps.</p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1094513, member: 12995"] It's the deviation in velocity you get between the slowest shot and fastest shot over the chronograph. You want as low an ES as possible. Example: First shot: 3,015 Second shot: 3,025 Third shot: 3,033 Fourth shot: 3,027 Fifth shot: 3,042 Your average velocity would be: 3,028.4 fps. Your extreme spread is: 27 fps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
best powder for 7mag 180 bergers
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