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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica crf 1600 here! (short review)
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<blockquote data-quote="crypto666" data-source="post: 426500" data-attributes="member: 10794"><p>I do not believe density alttitude is necassary. That is more of an aviation thing where you want to know how an aircraft is going to behave given the temp/pressure. A hot day at 6500 feet may be the equivelant of a cool day at 7500 feet. It is describing the density of the air.</p><p>One ballistics calc I use (JBM) asks for pressure and alttitude, but I think it is only using pressure for the solution and I assume that if a value isn't given for pressure, then it falls back on alltitude to define that variable. I use the altitude variable in estimating the change in pressure/density when there is a change in alttitude so I know where I am hitting when I move from 5500 ft. up to 8500 ft. ASL. Otherwise I just always give actual pressure as read from my kestral; which may or may not be right but is close enough. So a actual pressure reading is all I would want from a RF; altitude is meaningless. </p><p> </p><p>It doesn't matter how high you are, what matters is how dense the air is.</p></blockquote><p></p>
[QUOTE="crypto666, post: 426500, member: 10794"] I do not believe density alttitude is necassary. That is more of an aviation thing where you want to know how an aircraft is going to behave given the temp/pressure. A hot day at 6500 feet may be the equivelant of a cool day at 7500 feet. It is describing the density of the air. One ballistics calc I use (JBM) asks for pressure and alttitude, but I think it is only using pressure for the solution and I assume that if a value isn't given for pressure, then it falls back on alltitude to define that variable. I use the altitude variable in estimating the change in pressure/density when there is a change in alttitude so I know where I am hitting when I move from 5500 ft. up to 8500 ft. ASL. Otherwise I just always give actual pressure as read from my kestral; which may or may not be right but is close enough. So a actual pressure reading is all I would want from a RF; altitude is meaningless. It doesn't matter how high you are, what matters is how dense the air is. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Leica crf 1600 here! (short review)
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