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Posted: 1/23/2009 10:00:13 PM EDT
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So I am new to the forums but not to shooting. I have been trying to figure out mil dots lately. I own a nice RRA standard A4 with a cheap Nikon Buckmaster. Ive never had a chance to shoot past 110 yards but I have no problem zeroing that close range.
My question is, how do mil dots work?? Ive read some articles online in which they talk about some forumlas, and let me say, I am horrible at math. It just does not make sense to me. So hypothetical scenario. Lets say you are at a range or wherever, and your scope is zeroed at 100 yards and you are aiming at an average man sized target. How do you go about figuring out how far away "it" is and knowing how many clicks you have to adjust for elavation? Another question I have is, what is the standard magnification on a Nikon Buckmaster for a .223? I am very new with scopes and want to get a good understanding with them before I spend over a 1000 on one. The picture is my rifle which I painted with a YHM Suppressor. http://i81.photobucket.com/albums/j237/Kiku_Sui/Picture003.jpg |
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Mil dots work work for range estimation because 1 Mil equals about 3.6 inches at 100 yds.
Formulas that are normally used are Known Height of Target in yards/MILS X 1000 = range to target So a man who is 6' (2 yards) is 3.5 mils in your scope would be at 572 yards. or Known Height of Target in Inches/ MILS X 27.78 = range in yards so a person who is 5'10" (70") is standing 6.25 Mils tall they would be at 312 yards. Same as everything, it takes practice. You do have to be aware what magnification your scope is set to range at, unless its FFP a mildot in your scope will only be a mil at one setting. As far as magnification goes, thats mostly a matter of personal comfort, for 223 I like around 10x. for 308 I like around 20x, but that from lots of shooting and comfort development. If your new to scopes a 3-9 should do great and be quite reasonably priced. For further reference Mildot website |
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And get yourself a Mildot Master too. It is a handy slide rule that works well for it's intended purpose. But definitely try to understand the concept fully in the referenced website posted above. As they say, "you have to learn how to walk before you can run."
http://www.mildot.com/ |
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Quoted:
Thanks for the current replies. How can I find out what magnification my scope is set to range at? Also, will buying the Mildot Master tell me how many clicks I would have to adjust for elavation depending on the bullets ballistics? Is this a second focal place scope, meaning the reticule remains the same size no matter what magnification it is set to? AFAIK, most scopes are set at the highest magnification, though I have seen the variable 4-18X Falcon scopes state 10x is set for true MOA. Mil dot master will not tell you how many clicks because scopes can have different values for the turrets such as 1/8", 1/4", 1/2", 1 mil, etc. per click at whatever the true MOA is. What it will tell you is the range of the target so you can adjust you scope to compensate for the bullet drop or wind deflection if you do not want to guesstimate holdovers. You have to correlate that. Lets say your gun is zeroed at 100 yards, the target is estimated to be out at 300 yards, the bullet drop for 300 yards is stated to be 12" by the ammo maker, and your scope is 1/2" click per MOA, you would need to dial point of impact 24 clicks down from point of aim. If it were 1/4" per MOA you would need 48 clicks. I am by no means a long range shooter well versed in mil dots so someone correct me if I am wrong. My next scope is going to be a front focal plane variable with a milradian reitcule and turrets. 1 mil is 1 mil, no need to convert clicks per MOA. You can still do range estimation with mil radian |
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