USING THE BTR-Mil™ Ballistic tactical RETICLE (ET3124FJ / ET6245FJ)
The Bushnell BTR-Mil™ Ballistic Tactical Reticle is a hashmarked reticle that uses mrad based subtension lines for ranging, holdover and windage corrections. The illuminated 1 mil diameter circle with .1 mil center dot provides an unobstructed view of the target with 10 illumination settings.
In order to facilitate accurate holdover and windage compensation, this reticle uses hash marks spaced in 1 mil increments with .5 mil graduations. It provides a total of 10 mils of holdover below the center dot on the vertical crosshair and a total of 10 mils of subtension lines on the horizontal crosshair. There are also more precise subtensions of .2 mils on the last mil hash on both outer ends of the horizontal crosshair and on the bottom of the vertical crosshair. The BTR-Mil reticle features an illuminated center dot that spans approximately .1 mil and marks the imaginary intersection of the horizontal and vertical stadia lines. This dot is enclosed by an illuminated ring that subtends 1 mil. The thickness of this illuminated ring is .14 mils.
Because the BTR-Mil reticle is positioned in the first focal plane (FFP), reticle measurements can be used with the scope set at any magnification.
To increase the brightness of the illuminated ring, set the brightness adjustment control (located near the eyepiece-see pg. 5) to a higher number (opposite the white index dot). To turn off the illumination and when storing the scope, set the dial to”OFF” To replace the battery, remove the cap on the brightness adjustment control knob using a coin, and insert a CR2032 battery with the “+” mark facing up (pg. 19, Fig. 2).