Re: S&B Scopes
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: cpapa</div><div class="ubbcode-body">I am not talking about units of measure.If the scope is calibrated to 1 cm or 1 mr at 100 meters and I am shooting at 100 yard and the scope is calibrated at 1000 meters I have to adjust for difference in distance correct. </div></div>
<span style="font-weight: bold">A MIL IS an angular unit of measure.</span> For rifle scopes, 0.1 MIL (1/10th MIL) equals .36" at 100 yards. Each click of the scope will move the impact 0.1 MIL, which is .36" at 100 yards, .72" at 200 yards, 1.08" at 300 yards, ect. While the .36" single click increment "multiplies" every 100 yards, it is still 0.1 MIL. Get it?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: cpapa</div><div class="ubbcode-body">I believe that my ammunition data has to be calibrated in meters not yard in order for the scope to function correctly at its settings. </div></div>
That is incorrect. For instance, I use "<span style="font-weight: bold"><span style="font-style: italic">
JBM Small Arms Ballistics</span></span>" to make my range cards and set JBM to calculate my Elevation drop and Windage based on 0.1 MIL increments. You can set JBM to output the corrections in yards or meters.
And as far as the parallax knob goes, after you've used the scope a while and gained some experience with it you will know approximately where to turn the parallax knob to approximate the correct distance in yards (the parallax knob is calibrated in meters so you'll typically have to stop short of the printed distances). Either way you'll be fairly close.
Keith