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<blockquote data-quote="SDMF" data-source="post: 239339" data-attributes="member: 412">If you don't know the range, you have to guess about:1.&nbsp; Range, which means you also have to guess about:2.&nbsp; Drop3.&nbsp; Drift/leadIf you DO know the range you have to guess about:1.&nbsp; Drift/lead, sort of.Because with knowledge of range, you can also know drop for sure.&nbsp; Drop is gravity, it's always the same.When I say you're &quot;Sort Of&quot; guessing about drift, you're at least making a somewhat educated guess IF you know the range.&nbsp; Windage/lead are linear and relate to time-of-flight of the bullet.&nbsp; If a 10MPH wind pushes your bullet &quot;X&quot; inches, a 5MPH wind will push it 1/2 that and a 20MPH wind will push it &quot;2x&quot;.&nbsp; Lead is really no different than wind.&nbsp; The bullet takes &quot;X&quot; time to reach the target.&nbsp; @ &quot;Y&quot; speed the target will move &quot;Z&quot; distance.&nbsp; If you have a chart w/10MPH windage, that's pretty easy numbers to extrapolate quickly.This sounds more complex than it is.&nbsp; The real trick is to shoot enough that you can recognize wind speed by what leaves, branches, cattails, or grass is doing.&nbsp; Same goes for moving targets, deer, coyotes, whatever.&nbsp; You can figure roughly 35-40MPH running for all their worth then back off from there depending upon how hard they're running.For the record, I still miss plenty, especially coyotes on the move, it's like the bastards have a force-field that deflects my bullets.</blockquote>

[QUOTE="SDMF, post: 239339, member: 412"] If you don't know the range, you have to guess about: 1. Range, which means you also have to guess about: 2. Drop 3. Drift/lead If you DO know the range you have to guess about: 1. Drift/lead, sort of. Because with knowledge of range, you can also know drop for sure. Drop is gravity, it's always the same. When I say you're "Sort Of" guessing about drift, you're at least making a somewhat educated guess IF you know the range. Windage/lead are linear and relate to time-of-flight of the bullet. If a 10MPH wind pushes your bullet "X" inches, a 5MPH wind will push it 1/2 that and a 20MPH wind will push it "2x". Lead is really no different than wind. The bullet takes "X" time to reach the target. @ "Y" speed the target will move "Z" distance. If you have a chart w/10MPH windage, that's pretty easy numbers to extrapolate quickly. This sounds more complex than it is. The real trick is to shoot enough that you can recognize wind speed by what leaves, branches, cattails, or grass is doing. Same goes for moving targets, deer, coyotes, whatever. You can figure roughly 35-40MPH running for all their worth then back off from there depending upon how hard they're running. For the record, I still miss plenty, especially coyotes on the move, it's like the bastards have a force-field that deflects my bullets. [/QUOTE]

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