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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
help with drop field ... exball and field resoults
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<blockquote data-quote="300rum" data-source="post: 359650" data-attributes="member: 6231"><p>hi,</p><p></p><p>i got a strange situation...</p><p>i have a big difference on drop value from one day to another at diff distances.</p><p>2850fps, 300smk, 49f, 40%humidity, 24.75 pressure. 2mph from 3 clock</p><p>the same batch of reloading bullets, 0.5-0.75moa all day.</p><p>all the shooting are done from one slope to another over a small valley.</p><p>wind is blowing acros the valley, from 3 to 9 a clock.</p><p>so here is...</p><p>exball or jbm value are the same but real field value are off</p><p>407yrd - exbal 5.2moa, but field is 4moa</p><p>620yrd - exbal 10.75 but field is 10.5 at 8 degree cosine</p><p>975yrd - exbal 21.75 but field is 22.75 at 0 cosine</p><p></p><p>i double cheked everything, and this is drive me nuts...</p><p>any adviced, or help to solve this will be more then welcome.</p></blockquote><p></p>
[QUOTE="300rum, post: 359650, member: 6231"] hi, i got a strange situation... i have a big difference on drop value from one day to another at diff distances. 2850fps, 300smk, 49f, 40%humidity, 24.75 pressure. 2mph from 3 clock the same batch of reloading bullets, 0.5-0.75moa all day. all the shooting are done from one slope to another over a small valley. wind is blowing acros the valley, from 3 to 9 a clock. so here is... exball or jbm value are the same but real field value are off 407yrd - exbal 5.2moa, but field is 4moa 620yrd - exbal 10.75 but field is 10.5 at 8 degree cosine 975yrd - exbal 21.75 but field is 22.75 at 0 cosine i double cheked everything, and this is drive me nuts... any adviced, or help to solve this will be more then welcome. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
help with drop field ... exball and field resoults
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