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What is your preferred scope reticle calibration?
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<blockquote data-quote="jtkratzer" data-source="post: 701836" data-attributes="member: 40885"><p>There is a use when you know your rifle's dope or bullet drop in mils (or MOA) and you can just dial your elevation. Sure, a LRF is the preferred method, but if/when your electronics fail or batteries die, you can use a slide tool (Mildot Master) and come up with ranges as well as bullet drops without batteries by knowing your dope and usually do it faster than an electronic calculator.</p><p></p><p></p><p> </p><p>First off, Semper Fi.</p><p></p><p>Second, that circle has 6400 mils regardless of whether the circle is 10 feet in diamter or 10 miles. Both circles have 6400 mils, but the circumference is very different. I think we're both on the same page and how I posted wasn't clear. A mil is a mil, but it's an angular measurement, not a unit of measurement used for length, because the mil is not constant in length (divergence of the mil for the 0844). A mil is an angle - just like a degree is an angle - the distance between two lines that are 30* apart increases as you move away from the point where those two lines intersect, same thing with the mil and because there aren't exactly 6400 mils in a circle, we artilleryman use that magic 1.0186 number (there's actually 6283 mils in a circle, 6400/6283 = 1.0186) to try and cut the error down further.</p><p></p><p>What I meant was a mil is not metric, SAE, etc. It can be whatever you want it to be since it's not a linear measurement, just an angular measurement that follows the rules of trig and geometry. It's not fixed to meters or yards. You can use any unit of measure you want. Artillery (US anyway) always uses meters because the math is simple as metric and mils are both base 10 number systems. You range or measure distance between two objects in mils, and in the 0861 world, they use the OT factor to convert mils into a linear distance on the ground as you already know a mil represents a greater length as the range of the object being measured increases.</p><p></p><p>You can convert the angular measurement to any linear measurement you want, as long as you follow the base 10 rules that come with mils - which is why meters work so well. 1 mil is roughly 1 meter at 1000, .5 meter at 500, .1 meters at 100, 1 mil is 2 meters at 2000, etc. A scope with .1 mil turret adjustments moves the POI .01 meters at 100 meters.</p></blockquote><p></p>
[QUOTE="jtkratzer, post: 701836, member: 40885"] There is a use when you know your rifle's dope or bullet drop in mils (or MOA) and you can just dial your elevation. Sure, a LRF is the preferred method, but if/when your electronics fail or batteries die, you can use a slide tool (Mildot Master) and come up with ranges as well as bullet drops without batteries by knowing your dope and usually do it faster than an electronic calculator. First off, Semper Fi. Second, that circle has 6400 mils regardless of whether the circle is 10 feet in diamter or 10 miles. Both circles have 6400 mils, but the circumference is very different. I think we're both on the same page and how I posted wasn't clear. A mil is a mil, but it's an angular measurement, not a unit of measurement used for length, because the mil is not constant in length (divergence of the mil for the 0844). A mil is an angle - just like a degree is an angle - the distance between two lines that are 30* apart increases as you move away from the point where those two lines intersect, same thing with the mil and because there aren't exactly 6400 mils in a circle, we artilleryman use that magic 1.0186 number (there's actually 6283 mils in a circle, 6400/6283 = 1.0186) to try and cut the error down further. What I meant was a mil is not metric, SAE, etc. It can be whatever you want it to be since it's not a linear measurement, just an angular measurement that follows the rules of trig and geometry. It's not fixed to meters or yards. You can use any unit of measure you want. Artillery (US anyway) always uses meters because the math is simple as metric and mils are both base 10 number systems. You range or measure distance between two objects in mils, and in the 0861 world, they use the OT factor to convert mils into a linear distance on the ground as you already know a mil represents a greater length as the range of the object being measured increases. You can convert the angular measurement to any linear measurement you want, as long as you follow the base 10 rules that come with mils - which is why meters work so well. 1 mil is roughly 1 meter at 1000, .5 meter at 500, .1 meters at 100, 1 mil is 2 meters at 2000, etc. A scope with .1 mil turret adjustments moves the POI .01 meters at 100 meters. [/QUOTE]
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