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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
changing ballistic computer input
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<blockquote data-quote="Broz" data-source="post: 606435" data-attributes="member: 7503"><p>What I have found to be best after many years with many program is, At first enter your data and then go afield and shoot actual drops ever 100 or 200 yards out to the distances you intend to shoot. Then log all this data including the field conditions at the time of the shot. Then bring this data with confirmed drops home and start to fine tune yor curve with both BC and Vel until they match up everywhere with your program. Remember that since most of us shoot 1/2 moa rifles and your actual field groups will have this 1/2 moa included you may not get it perfect every where. But I have found that after shooting multiple groups at every test distance I can get most to agree with in .25 moa. Not a simple task, but you get back what you put in with first round accuracy at all distances. Usually the chono is the culprit, but I have had to fudge BC as well and when going beyond 1200 yards someties stepped BC's and low end velocity limits are needed.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 606435, member: 7503"] What I have found to be best after many years with many program is, At first enter your data and then go afield and shoot actual drops ever 100 or 200 yards out to the distances you intend to shoot. Then log all this data including the field conditions at the time of the shot. Then bring this data with confirmed drops home and start to fine tune yor curve with both BC and Vel until they match up everywhere with your program. Remember that since most of us shoot 1/2 moa rifles and your actual field groups will have this 1/2 moa included you may not get it perfect every where. But I have found that after shooting multiple groups at every test distance I can get most to agree with in .25 moa. Not a simple task, but you get back what you put in with first round accuracy at all distances. Usually the chono is the culprit, but I have had to fudge BC as well and when going beyond 1200 yards someties stepped BC's and low end velocity limits are needed. Jeff [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
changing ballistic computer input
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