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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Balllistics Program Question
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<blockquote data-quote="Dave King" data-source="post: 24752" data-attributes="member: 3"><p>Blaine</p><p></p><p> Atmospherics at 100 yards are probably close to a non-issue. (There seems to be something else at work at 100 yards when changing geographic locations though, Len and I have discussed this 100 yard zero problem before.)</p><p></p><p> In tests I performed in Colorado (change from 600 ASL to 10,500 ASL) I didn't see much difference in trajectories until about 400 yards. (Shot with 600 ASL data at 10,500 ASL just to check elevation change.)</p><p></p><p> In the TRGT Data Book there is a Zero Data Summary page that allow a shooter to track data at many ranges and temperatures. A fella could easily make one for other atmospheric and geographic conditions.</p><p></p><p></p><p> S1</p><p></p><p> I don't believe your supplied formula is correct as written. There seems to be a method to remove the 100 yard zero data from the "old" conditions but no place to reintroduce the corrected "new" 100 yard data.</p></blockquote><p></p>
[QUOTE="Dave King, post: 24752, member: 3"] Blaine Atmospherics at 100 yards are probably close to a non-issue. (There seems to be something else at work at 100 yards when changing geographic locations though, Len and I have discussed this 100 yard zero problem before.) In tests I performed in Colorado (change from 600 ASL to 10,500 ASL) I didn't see much difference in trajectories until about 400 yards. (Shot with 600 ASL data at 10,500 ASL just to check elevation change.) In the TRGT Data Book there is a Zero Data Summary page that allow a shooter to track data at many ranges and temperatures. A fella could easily make one for other atmospheric and geographic conditions. S1 I don't believe your supplied formula is correct as written. There seems to be a method to remove the 100 yard zero data from the "old" conditions but no place to reintroduce the corrected "new" 100 yard data. [/QUOTE]
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Balllistics Program Question
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