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Long Range Hunting & Shooting
10 mph head wind not easy
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<blockquote data-quote="Mike Matteson" data-source="post: 2898939" data-attributes="member: 101791"><p>It's been an interesting read. One thing that concern me is the change in temperature. Some powders change as much as 1fps per 1 d' of change. 30fps is about 8.5" @ 1000yds, and 50fps changes as much as 14" @ a 1000yds. So you are not just dealing with "weather" in wind but temperature change at the same time. If you can get the "SD" down to almost 0 fps, Then that part kind of goes away. </p><p>I continue to read here about what powders people are using and how good it is. I kind of feel most people aren't aware how the temperature changes the POI at longer yardages. Especially in weather changing as 130' from high to low, and can be more. </p><p>I'll kept reading the learning here on wind. I am well aware of how wind effects POI.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2898939, member: 101791"] It's been an interesting read. One thing that concern me is the change in temperature. Some powders change as much as 1fps per 1 d' of change. 30fps is about 8.5" @ 1000yds, and 50fps changes as much as 14" @ a 1000yds. So you are not just dealing with "weather" in wind but temperature change at the same time. If you can get the "SD" down to almost 0 fps, Then that part kind of goes away. I continue to read here about what powders people are using and how good it is. I kind of feel most people aren't aware how the temperature changes the POI at longer yardages. Especially in weather changing as 130' from high to low, and can be more. I'll kept reading the learning here on wind. I am well aware of how wind effects POI. [/QUOTE]
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10 mph head wind not easy
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