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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with trajectory please "thing"
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<blockquote data-quote="groper" data-source="post: 268590" data-attributes="member: 12550"><p>scope is a FFP scope and so far its proven to track very well. distances are assumed from a palma range, we verified the 900yds via GPS also. I shot over 50 rounds to get these numbers, not just a few.</p><p> </p><p> </p><p>but not to worry, i seem to have gotten closer since my last post.</p><p> </p><p>from this data, closest i can make fit is this...</p><p> </p><p>2950fps, .62 BC</p><p>zero at 218yds. (1 inch groups centered at 218yds) </p><p>3.0 mils at 600, (i measured 3.1mils actual)</p><p>5.8mils at 900 (same as i measured)</p><p> </p><p>only thing i can figure is that my 600yd drop is maybe 0.1 mil error???</p><p> </p><p>does this sound ok?</p><p> </p><p>i worked this out via trial and error using the "thing", is there a more methodical way other than subbing in random values to get a traj close to what you measure as actual???</p><p> </p><p>Also as a side note, i needed 0.3mil left at 900 also, i didnt think spin drift would be that much, is it possible or somthing else???</p></blockquote><p></p>
[QUOTE="groper, post: 268590, member: 12550"] scope is a FFP scope and so far its proven to track very well. distances are assumed from a palma range, we verified the 900yds via GPS also. I shot over 50 rounds to get these numbers, not just a few. but not to worry, i seem to have gotten closer since my last post. from this data, closest i can make fit is this... 2950fps, .62 BC zero at 218yds. (1 inch groups centered at 218yds) 3.0 mils at 600, (i measured 3.1mils actual) 5.8mils at 900 (same as i measured) only thing i can figure is that my 600yd drop is maybe 0.1 mil error??? does this sound ok? i worked this out via trial and error using the "thing", is there a more methodical way other than subbing in random values to get a traj close to what you measure as actual??? Also as a side note, i needed 0.3mil left at 900 also, i didnt think spin drift would be that much, is it possible or somthing else??? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Help with trajectory please "thing"
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