Location: Inukjuak, Canadian Eastern Arctic 59 parallel
Originally Posted by Catfish
700 yrds. is a long way for reliable mil-dot ranging. If you were doing it a lot and know the size of your game and use a real flat shooting round you might get good enough for deer or carabo size game, but definitely not varmints. I`ll continue to carry my range finder and dial in my moa.
I do practice as aften as possible and get my ammo by the case. And yep I pretty well the sizes of my prey. Also agree that dialing in is more precise and for a good distance that's what I do. But so far holding over & under has been good.
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To Go Where No Man Has Gone Before.
I ran some numbers and this is what I come with. Take for instance you mil a deer at .6 mils and you are using 16" for your target size. After doing the math it comes out to 741 yards. Now suppose the actual mil was .7 mils(only off by 10%). The actual range is 635 yards which is a 106 yard difference.
Now suppose you get the mil reading exact, which would be sheer luck on an animal that is moving around. The mil reading is .6 mils and you are using 16" for your target size which puts it at 741 yards. Well it turns out that the target size is 15" (not quite as big of a trophy as you thought he was), that puts you ranging him at 694 yards. Thats a difference of 47 yards.
IMO this method is not accurate enough for hunting game at long range, you are trying to kill it, not just hit it. Steel plates are one thing and animals are another. Steel plates are sitting still and you know their exact size. Animals are moving around and standing at all different angles and you don't know the exact size of your target. There are just too many varibles.
For now I use my mil-dots for all my shooting since I have never shot a deer over 400 yards away and in that distance you are pretty much right on. Although almost all my mil-dot practice comes from shooting prairie dogs. They are great practice for mil-dots since they pop up at all sorts of different distances. Although when I someday get the dough together to purchase a LRF I think I will and use that primarily and mil-dots when the LRF is either out of batteries or the snow has made it useless.
On multiple power scopes the mil dot is only accurate at one power setting (say 10X). It helps to measure an actual 100 yards off and use a piece of pvc with black electrical tape to measure off 36" - 10 mils or 18" - 5 mils. and mark the scope to where the 10 mils accurately sizes the 36" on the pipe at 100 yards. Otherwise your measurements will be off even if you are accurate in your reading of the scope. Also on mine the mil dots are supposed to read accurately at 10X but it goes to 25X so I can mark the scope where 10mils = 18",@100 yds., and use a 20X reading. For more accuraccy do a 20X reading and divide the reading by 1/2 to get mils to plug into the program for a more accurate reading.