Barska Optics Optics - Recent Questions, Troubleshooting & Support
How do I use the range finding graph reticle from
The IR Rangefinding Reticle is based on the military reticle that ranges tanks, believe it or not, front to back--whatever line the tank fits between will give the range to it...but the reticle has been adapted for use in some riflescopes. Trying to define the math behind rangefinding and downrange zeroing with multi-stadia reticles is complicated and takes some study to fully grasp the concepts, which is why I have a constantly available on-line article, entitled, "Tactical Ballistic and Ranging Reticle Analysis," right here--
http://specialtypistols.infopop.cc/Reticle_Ranging___App.pdf
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