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bullet and wind drop charts
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<blockquote data-quote="7magcreedmoor" data-source="post: 973823" data-attributes="member: 48559"><p>I would recommend Bryan Litz's book "Applied Ballistics" to anyone seeking a better understanding of this subject. He deals with both theory and practical use in layman's terms, without leaving out anything important. Here is my own "short version" of basic rifleman's scope use keys: The optics we use are calibrated using angular measurements, either minutes of angle, or milliradians. It doesn't really matter which you choose, it is basically a personal preference issue- they are both doing the same thing in the end. I like minutes of angle (MOA) because, well, that's what I like. The important thing is, whichever system you choose, get a scope with the same system in turret and reticle. In other words, if you like a mildot reticle, make sure you have turrets that are calibrated in MILs (usually they will adjust in 1/10th mil per click), or if you like MOA, you want turrets and reticle to both be graduated in MOA (turrets are often 1/4 MOA per click). Having made your choice, print your drop charts in the same unit of measure. When you determine the range to the target (hopefully with a laser rangefinder, but optical measurements can also be used- subject to considerable opportunity for user error), you then consult your drop data, and dial the appropriate MOA or MIL setting. The windage should also be given in the same unit, again so you can dial or hold without having to engage in math conversions on the spot. I had a very difficult time convincing a friend of mine to stop trying to think of everything in inches, which was making his life so much harder when trying to dope the shot in the field. He has finally come around to this simpler approach. I personally go one step further in simplifying the process, and that is having my turrets engraved with the actual range data in addition to the MOA, but I don't want to rush you...</p></blockquote><p></p>
[QUOTE="7magcreedmoor, post: 973823, member: 48559"] I would recommend Bryan Litz's book "Applied Ballistics" to anyone seeking a better understanding of this subject. He deals with both theory and practical use in layman's terms, without leaving out anything important. Here is my own "short version" of basic rifleman's scope use keys: The optics we use are calibrated using angular measurements, either minutes of angle, or milliradians. It doesn't really matter which you choose, it is basically a personal preference issue- they are both doing the same thing in the end. I like minutes of angle (MOA) because, well, that's what I like. The important thing is, whichever system you choose, get a scope with the same system in turret and reticle. In other words, if you like a mildot reticle, make sure you have turrets that are calibrated in MILs (usually they will adjust in 1/10th mil per click), or if you like MOA, you want turrets and reticle to both be graduated in MOA (turrets are often 1/4 MOA per click). Having made your choice, print your drop charts in the same unit of measure. When you determine the range to the target (hopefully with a laser rangefinder, but optical measurements can also be used- subject to considerable opportunity for user error), you then consult your drop data, and dial the appropriate MOA or MIL setting. The windage should also be given in the same unit, again so you can dial or hold without having to engage in math conversions on the spot. I had a very difficult time convincing a friend of mine to stop trying to think of everything in inches, which was making his life so much harder when trying to dope the shot in the field. He has finally come around to this simpler approach. I personally go one step further in simplifying the process, and that is having my turrets engraved with the actual range data in addition to the MOA, but I don't want to rush you... [/QUOTE]
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