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Long Range Hunting & Shooting
how does time of day effect 1000yd shot
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<blockquote data-quote="SBruce" data-source="post: 451993" data-attributes="member: 21068"><p>When shooting a new custom 338 edge on paper at 950 yds recently.......we noticed a change in point of impact from day to day (bright/sunny/warm vs cloudy and slightly cooler) Temps, BP, RH etc. were accounted for in the ballistic program, but poi was still noticably higher on the bright sunny days. Perhaps it was due to Mirage boil more so than sunlight?? Too little experience with same rifle/load at same distance to say for sure.</p><p> </p><p>We are still uncertain how much of this was a scope tracking issue, because the scope seems to change zero by at least 1/2" at 100 yds (more testing needed to absolutely confirm). But in my limited experiece at 950 yds, I'd say aim slightly lower on bright sunny days, But don't quote me on this. Just throwing in my .02 (and it might not be worth that much)! Still learning stuff myself when it comes to the 1000 yd mark.</p></blockquote><p></p>
[QUOTE="SBruce, post: 451993, member: 21068"] When shooting a new custom 338 edge on paper at 950 yds recently.......we noticed a change in point of impact from day to day (bright/sunny/warm vs cloudy and slightly cooler) Temps, BP, RH etc. were accounted for in the ballistic program, but poi was still noticably higher on the bright sunny days. Perhaps it was due to Mirage boil more so than sunlight?? Too little experience with same rifle/load at same distance to say for sure. We are still uncertain how much of this was a scope tracking issue, because the scope seems to change zero by at least 1/2" at 100 yds (more testing needed to absolutely confirm). But in my limited experiece at 950 yds, I'd say aim slightly lower on bright sunny days, But don't quote me on this. Just throwing in my .02 (and it might not be worth that much)! Still learning stuff myself when it comes to the 1000 yd mark. [/QUOTE]
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how does time of day effect 1000yd shot
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