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Long Range Hunting & Shooting
Range estimation with a duplex?
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<blockquote data-quote="Old Timer" data-source="post: 6562" data-attributes="member: 1474"><p>I have done this for years. Animals that live in areas with little background cover for a good laser lock like antelope and caribou render laser rangefinders useless. I set the average of my mid range trajectory the same as the back to brisket measurement of my quarry. For instance caribou average about 21". When I zero my rifle at 650 yards the mid range trajectory is within 3.5" up or down of 21" from 175 to 575 yards. Simply adjust the power ring to frame the caribou between the top duplex and the crosshare which measures 21" for you. Now the point of your top duplex is 21" high at the point where the caribou is standing. Hold that point dead center of the chest and shoot. If the caribou is between 175 and 575 you will hit not more than 3.5" high or low, or in other words very dead caribou. If he is further than 575 then you have two other sights to use which are the crosshare and bottom duplex. I know exactly where these hit also. In hunting situations many times you don't have time to turn clicks and this method is very fast. I have been doing this for thirty years and everyone that hunts with me are amazed how I never miss at long range. This method works very well out to the limit of where I shoot at game which is about 850 yards. Usually I can figure a stalk to get within this range. Just keep in mind things that can decieve the system like steep up or down shots.</p></blockquote><p></p>
[QUOTE="Old Timer, post: 6562, member: 1474"] I have done this for years. Animals that live in areas with little background cover for a good laser lock like antelope and caribou render laser rangefinders useless. I set the average of my mid range trajectory the same as the back to brisket measurement of my quarry. For instance caribou average about 21". When I zero my rifle at 650 yards the mid range trajectory is within 3.5" up or down of 21" from 175 to 575 yards. Simply adjust the power ring to frame the caribou between the top duplex and the crosshare which measures 21" for you. Now the point of your top duplex is 21" high at the point where the caribou is standing. Hold that point dead center of the chest and shoot. If the caribou is between 175 and 575 you will hit not more than 3.5" high or low, or in other words very dead caribou. If he is further than 575 then you have two other sights to use which are the crosshare and bottom duplex. I know exactly where these hit also. In hunting situations many times you don't have time to turn clicks and this method is very fast. I have been doing this for thirty years and everyone that hunts with me are amazed how I never miss at long range. This method works very well out to the limit of where I shoot at game which is about 850 yards. Usually I can figure a stalk to get within this range. Just keep in mind things that can decieve the system like steep up or down shots. [/QUOTE]
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Range estimation with a duplex?
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