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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5x284 drop chart
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<blockquote data-quote="BrentM" data-source="post: 865249" data-attributes="member: 61747"><p>Hmmm, if you zero at 200 and use the exact same POA for 300, meaning you make no adjustment, then measure the actual drop that will help you determine FPS. To check against the chrono. </p><p> </p><p>In order for you to be off from 200 yrd zero to 9.9" drop at 300 the FPS is only around 2400. I use 54 gr of 4831sc and get 2900. So I suppose that could be the case.</p><p> </p><p>How did you determine 2750fps?</p></blockquote><p></p>
[QUOTE="BrentM, post: 865249, member: 61747"] Hmmm, if you zero at 200 and use the exact same POA for 300, meaning you make no adjustment, then measure the actual drop that will help you determine FPS. To check against the chrono. In order for you to be off from 200 yrd zero to 9.9" drop at 300 the FPS is only around 2400. I use 54 gr of 4831sc and get 2900. So I suppose that could be the case. How did you determine 2750fps? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5x284 drop chart
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