First we will deal with the “Choke” of the Rangefinder reticle. As with the P4 sniper, the horizontal crosshair of the Rangefinder is divided into 5 increment MOAs and the vertical crosshair starts at 2 MOA and then is in 1 MOA increments. The bottom of the Rangefinder reticle is call the range finding “Choke”. Looks simple, just put my target in the “Choke” and I’ll know how far it is !! – well, it is simple but not quite that simple.
What if a deer and a freight train box car both took up the entire line at the 125 yard mark? You think they are the same distance? No… they are for sure not the same distance and here’s why. The “choke” is base on an 18 inch target – the average size across a man’s shoulders. So in ranging your deer you need to pick an area approx 18 inches such as an area of the hind or front quarter you feel is 18 inches wide.
I’ve found this to work for me. I start with the deer focused in the scope and determine what is about 18 inches. Then I move the scope up until that area fits in the reference marks. In our example if the whole deer fits in the 125 yard range, the hind quarter would fit around the 200 to 250 range – which would be the range of our deer. IF we made note of the beginning page and have our scope set on the power setting for the Choke.
Notice the “Choke” only goes up to 250 yards. What are we going to do with our Rangefinder if we have a target we know is more than 250 yards? We’re going to use our MOA range finding. So now we’re going to be dealing with the horizontal crosshair which is in 5 MOA increments. This is a TO REMEMBER: 1 MOA = 1 INCH @ 100 YARDS. 1 MOA = 2 inches @ 200 yards - 1 MOA = 3 inches @ 300 yards – and so on up. Here’s the formula for figuring range using the horizontal crosshair with the MOA markings.