Nikon Mildot?

motoman427

New member
I just recently bought a nikon buckmaster 4.5-14 x 40 scope with the mildot. I can't figure out what the power adjusting ring setting at "12 power" means since it has "mil" printed right by it. Is this the only power that the mildot system works at? I could not find any explanation in the manual. Other than that it seems like a nice scope can't wait till my rifle arrives.
 
The mildot will "cover" less area between dots on the higher magnifications than the lower magnifications. For example I believe mine has approximately 3 inches between dots on 14X at 100 yds. When you get it mounted take a standard 1" grid target and check the distance between the Mil dots on each power setting and write them down. You can then either plug in your loads ballistics into a PC program or shoot it at different yardages to become familiar with the proper hold over at different known distances. I don't think I could do the math fast enough to determine range on a predator unless he was asleep. I just use a laser range finder or give it a best guess as the situation warrants.
 
The mil dot system on your scope will work at 12 power, thats why it says mil next to it, a lot of scopes work at 10 power, it depends on whether the reticule is in the first or second focal plane.I would bet, 9 out of 10 people dont use the mildot, because its too slow, and i think, too difficult.Great for precise holdover though.
 
From the looks of the catatlog the Nikon system has really got it down. They provide all the measurements (subtensions)for their mil-dot scopes at thee milling power, the low power, and the highest power-- AND it can be seen that the power ring is calibrated properly since the magnification to subtension ratio is exactly inversely proportional as it should be. According to the site the dot to dot subtension is 3.12 inch per hundred yards (IPHY), and the dot diameter itself is .61 IPHY @ 14X. Great system u got there.
 
You never tried to learn about something you didnt know anything about Jack? Like maybe how something works on a car you bought? You perhaps grumpy because you havent done enough shooting lately or what? At least he is trying.
 
Generally, a Mil-Dot scope is synchronized at a certain power for range finding purposes. For many this is at the max power of the variable scope. For some this is at 10x. It's nice that Nikon gives you that reference on the scope. I have a Sightron and had to e-mail them for the setting as it was not listed in the instructions they sent me.
Do a Google for Mil-Dot Ranging, and you will find several sites that have a wide range of info on the use of the Mil-Dot concept and then you will have to set up your own specs based on your total set up (caliber, load, known trajectory,etc.), then go to the range and practice on various size targets.
I've worked up my trajectory sheets on a smaller Prairie Dog size as that is what the majority of my shooting will be for my Mil-Dots. I know which dot, or part of dot space to hold at each 100yd increment. I could adjust my elevations if they were all at a given distance or I were just shooting one. But since I anticipate a lot of them at various distances, the dots will be faster
Mil-Dots at the outset can seem confusing and overwhelming, but a lot of research and working through the applications will let you "become one with your scope".. /ubbthreads/images/graemlins/grinning-smiley-003.gif
 
I don't understand why varmint hunters are buying mil-dot scopes, unless its because it sounds real Kewl???

They are slow, the target must be standing still for 15 to 30-ish seconds, you must know the EXACT size (+/- 5%) of the target, and you need a pocket calculator to do the math.

I use Mil-dot scopes because I build "Practical field match rifles", (Sniper rifles), and I shoot sniper matches.
I don't use them on my varmint rifles.
If I had a choice in ranging systems, the mil-dot would be the very last I would choose.

The reason that the military uses mil-dots is the following... the military shooter must be able to range a target "passively" that is, without sending out any form of energy that can be detected by the opposition.

This means that they cannot use lasers. The military sniper has what is called a "Cheat book"... it has the dimentions of all the stationary items they will encounter - the size of window frames (h&w), the size of local car tyres and hub caps, the size of doors - the size of the local enemy, if they were long clothes, or can they be milled from the crotch to the head... and tons of other information on the size of everything they are likely to encounter.

When the sniper is settled in, they use all the "things" in the area to get ranges, BEFORE the target is chosen... a chart is made, and then the target is taken, or waited for.

None of this translates to varmint shooting. You see a PD pop up on a mound... is it 7" or 10"... you don't know, you can't mill it.

It won't stand straight up and perfectally still, you can't mil it.

You see a 'yote crossing a field... he won't stop and stand still for you... you can't mil it.

There is NOTHING a mil scope can do for the civilan shooter (unless they shoot sniper matches).

Mil-dot reticles have become another sales tool to get you to part with your money, thinking that you are going to get "what the real guys use".

As for hold over - the ballistic plex and varmint plex type scopes with a cheap laser are 1000 times more useful.
 
Yep...sniping them thar PD's.....plan on using my new Nikon Mil Dot 4.5x14x40 for that too....hows that thing work again?
 
Thanks for the help guys (some of you I mean) you clarified some questions I had. Jack did I ever say I did not know what a mil dot reticle does? I only had a question on how to use it. Cat shooter did I ever say I just bought it only for ranging prarie dogs and coyotes?
 
Well,, Since I won my Mil-Dot, as well as the .308 it was on, I figured I'd better learn how to use it.. I realize a lot of shooters get them because they think that because the military uses them effectively, it will automaticly make them sniper quality shooters... /ubbthreads/images/graemlins/cool.gif
But the question was asked, I tried to give a responsible answer and hopefully it will be enjoyed.
I agree that the Leupold varmint reticle might be better for PDs. But if you have a Mil-Dot, why not learn to use it. I have no problem working out charts for a 9" Prairie Dog at 400 yds. I know the trajectory on my cartridge and how far it will drop at a given point on the scope. All I have to do is have the skills to hold it there. /ubbthreads/images/graemlins/grinning-smiley-003.gif
 
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Catshooter, I understand your thoughts but respectfully, I do not agree. A couple notes: It's not perfect for rangeing varmints but, neither is a L.R.F. on small varmints at long range. In fact no L.R.F. manufacture states you can reflect off small varmints at long range (where you need them) and get a accurate reading. Some varmint hunters state this, not manufactures. I have compared the math. Yes, if you are off a inch or two on your mil rangeing it will throw off your mil rangeing some. But, IMO no more than a L.R.F. if one knows his varmints size and practice's mil rangeing. I have more faith in rangeing a woodchuck in a hay field with mil at 450 yards than I do ANY L.R.F. And the mil dot is free with the scope rather than an extra $450.00 for a L.R.F. just to shoot varmints with. Varmints do hold still long enough BTW. Speed, rangeing with mil. I have my charts on my gun stock. Range'em and look at the chart......pretty fast. The military sniper has more use for a L.R.F. than a varmint hunter because of the target size and terrain. A small varmint in a open field does not spell success with a L.R.F., although it will spit out a number.
Bottom Line On Rangeing Varmints Accurately Mil Or L.R.F. = consumers pick ? No guarantee on either.......I will take the mil dot and save the $450.00

"Sales tools for varmint hunters"- Not in my experiance. (but check with Burris and Leupold on that and theirs) Calculated ballistic come up's & hold off's........yes. Rangeing.............yes. If a sniper can range man,window frame,wheel,etc. Then a varmint hunter can pre range a field with type 4' high fence post's, tractor wheels, etc.

For "Motoman", welcome to the board. I will agree with SSCoyote in that Nikon has it together in regards to mil. Mil Dot is very,very simple. It's also highly available today. There are some better reticles with currently higher cost. How much do you want to spend to shoot varmints and kick them down the hole? I post this to help you. Take what you need and leave the rest. Make up some rangeing and ballistic mil charts and put them on your stock.
Have fun........I enjoy it. BTW- As I enjoy ballistic reticles, the math,etc. anyways on rainy days. I have found since writing the below, some ballistic software for the Burris & Leupold system that makes configuring to what one actually wants much easier at a fairly low cost. They are more diffacult to customize than mil because of uneven spacing and no common denominator (the mil). The software makes it simple. But, I still see know advantage to these for the varmint hunter. I think the manufactures just wanted a proprietary system "sales marketing tool" when mil was standard.


I am a big believer in mil dot scopes for varmints. Again this is for varmints; you have to blank out what a military user may want. So here are some tips. Because this is math (trigonometry) and we have a common value, “the mil”. I have not reached the apparently endless calculations that can be done with this to improve it for varmints. Here are some thoughts. I don’t want to overload you to start. Also, keep in mind there is a lot of written BS floating around by writers in regards to varmint hunting with mil, who apparently did not study it well, or don’t use it much. BTW- I absolutely use it……..always. So we will take out some of the myths here too.

For the varmint hunter using mil dot a variable power scope with the following is better.
1) Army mil / rather than Marine
2) Second focal plane. (The dots are then smaller on higher power for varmints)
3) Mil calibrations set at mid power or better yet even ratio Example: on a 4:1 ratio variable power scope such as a 6-24x40 the ideal calibration for the varmint hunter is 12x. Not, 24 power as some think.(if calibrated at highest power or near highest power the dot will be to large at long range for varmints. Remember at calibration the dots are ¾” at 100) This gives you freedom of choice for calibrating and a smaller dot at high power. BTW- The Bushnell mil dot scopes in 6-24x40 are ideal (Mueller’s,Nikon also appear to work out well for varmints). A 1:3 ratio scope say a 6.5-20 power ideal would be 13 power etc. If not calibrated for mil there you can still work with it. It’s just easier.

Here why:
First some standards for the above type (Army) mil dot scope.
1 mil (center to center dot) = 3.6” @ 100 yards on the calibrated setting
The dot size is typically ¼ mil or 1/5 mil. (.9” or .72”) basically ¾” at 100 yards on the calibrated setting.

First varmint hunter mil dot rule:
1) YOU DO NOT HAVE TO USE THE CALIBRATED SETTING AND I RARELY DO! (WITH THE ABOVE TYPE SCOPES)

A) The dot size is half at double the calibrated power. I use high power 22-24 on my 6-24x40 Bushnell M.D. for hold over and ranging. Mine is calibrated @ 12 power. On 24 power the dot at 100 yards is 3/8” MUCH BETTER FOR VARMINTS NEARLY IDEAL. At 500 yards that’s 1.87” on the target if a holdover dot happened (never is) to be exactly centered on the varmint. Not Bad.
B) For ranging on 24 power 1:4 ratio calibrated at 12 power it’s the same formula times two. I always range varmints on high power. That can be used double your calibration setting only. There is other simple math for in-between but who needs it. On a flat surface, I can range a woodchuck at 500 yards with more confidence than if using a laser range finder on high power with a bi-pod.
C) On the same scope 6 power ranging is the same formula divided by two. And a dot is larger. Some may use it for coyote’s.

2) GET RID OF THE FRACTIONS EASY!

A) Again using my 6-24x40 Bushnell as an example. The mil distance (3.6”) at 100 yards changes in proportion to the magnification. But, once set remains constant through out the yardage. Put up a 1” grid target @ 100 yards. If you want even numbers for drop and want to use higher power on the scope than is calibrated. Turn the power all the way up and line up on the grid. Slowly back the power down. On my scope at 100 yards at 22 power one mil equals 2” (in math terms exactly 2.1”). I make a ballistic card based on that……….even numbers. And it has nothing to do with where you are zeroed if using mil. Because it’s even spacing. Unlike many spin off’s using pre-set lines for ballistics. So it goes like this.

1 mil = 2” at 100, ½ mil = 1”, ¼ mil = ½”
1 mil = 2” @ 100, 4”@200, 6”@300, 8”@400, 10”@500, etc. And you have ½ and ¼ mil as reference points also. WIND DRIFT EQUALS THE SAME.
2 mil = 4”@ 100. 8” @ 200, etc, etc.
3 mil = 6” @ 100, 12”@ 200 etc. etc.

EVEN NUMBERS AT HIGHER VARMINT POWER! You can make up a card broke down into mils easily for your ballistics. For my 22-250 zeroed @ 250 yards. I don’t need off set rings etc. To get me way out there in yardage range. It is as accurate as you can range, judge and hold. It is the most accurate non mechanical means. It is true and exact from ranging to holdover if you do your part.

You can go on and on with this math from what I can tell. I believe that my mil m.o.a. changes .15” at 100 yards, with each single power increase from 12x (my factory calibration). So is I wanted to calibrate on 13 x my “mil” for lack of a better term, I suppose common denominator may be better would be 3.45” rather than 3.6”, Seeing is believing so put up a grid target. From there just like ammo ballistics’ calculator everything can be done at your desk with a 2 dollar pocket calculator. This is why I prefer mil dot over other ballistics reticles with pre-set un-even lines for holdover. The latter are confining to the users being un-even spaced with no common denominator.

THIS IS WHY IMO, THE ABOVE TYPE MIL DOT SCOPE IS BETTER FOR THE VARMINT HUNTER / SECOND FOCAL PLANE / MID CALIBRATION PREFERABLY IN RATIO WITH THE VARIABLE POWER VARMINT SCOPE EX: SET @ 12 ON A 6-24X40.

For the varmint hunter this equals an ideal dot size on higher power for varmints and variations in calibrated power for use, even numbers etc. For the Sniper (and maybe big game hunter) this may not be the case. They may want first foal plane. And they certainly want standard 3.6” calibrations for their spotter and shooter to be on same page with adjustments example: After a miss “2.5 mil low”. But we are varmint hunters.

THINGS THE VARMINT HUNTER USING MIL SHOULD DO
A) Use the inch’s ranging formula rather than yards / varmint height inch’s x 27.77 divided by mils = yardage on calibrated setting. If double the setting example 24 power ranging on my 6-24x40 Bushnell calibrated at 12x. Times two. half the calibrated setting Divide by two.
B) Know your varmints height in inches
C) Practice both ranging known target sizes and mil / wind drift hold off at the range.
D) Make a ballistic card with mil hold over and mil wind drift for your ammo on a higher used power setting.
E) Make or copy a mil ranging card based in inches for non field math (many on the net).
D) In regards to articles on the net, always trust the military instructions. Then convert to your needs for Varmint. Never trust a writer that used a mil dot scope for a weekend review on varmint hunting with it. Unless he states he uses it always / regularly.
F) The math looks complicated. It’s not; in a short time much becomes memorized.
G) Some round the 3.6” @ 100 to 3.5” for even and half numbers at 100 yard increments and do nothing more.
H) Learn to break down mil to 1/8’s. BTW- ¼ mil is not ½ a dot. It is ½ dot plus line width.
I) you can always dial up to.
j) Fence post 4’, adult Woodchucks 16”-18” standing, Prairie Dogs 10”,Coyote 18”, Fox 12”

I really enjoy mil dot reticles for varmint hunting. There are good military instructions on the net. Conversions, to better mil dot for varmint hunting and scope choices, dot sizes, even number hold over, etc. I have made myself, through simple math, grid targets, studying scopes, as little has been written/documented for the varmint hunter using mil dot to date Jan. 2006 . Fortunately, most American style variable power scopes with mil dot fit the varmint hunter well. Generation 2 Mil Dot is also good for Varmint hunters. As it has mid mid slash marks. Some make ¼ mil judging difficult and it is crucial to varmint hunters to break it down at least to that. Similar can be done with other ballistic reticles such as the Burris Ballistic Mil Dot. But, they make it difficult with un-even hold over slashes and no common denominator such as a mil. Best not to tamper with a good thing just to have “proprietary”. IMO- A big benefit of long range varmint shooting using mil for hold over and wind drift compared to dial up is …..if you miss !. For a follow up shot on a small varmint. Rather than having to lift your head to adjust dial up elevation or windage. Your head stays down on the target and adjustment is made with mil. There are some custom reticles based on mil dot that are excellent for varmints. Some bring down the windage marks and also half mid points and remain non cluttered to my eye. Premier reticles have one I really like. All this is costly however, and standard mil dot in the above type scopes is an excellent ballistic and ranging reticle system for the varmint hunter. Bushnell, Nikon, Weaver, and more all have them. Just (for the varmint hunter) make sure it’s Army style, second focal plane, based on standard mil, dot size should be ¼ - 1/5 mil, variable power calibrated at a mid not full power, preferably in ratio for a 3:1 or 4:1 variable power scope and you can do all the above. If you want to. I am sure there is more also, as in math with even spacing and a denominator it is endless or seems to be. I am not a math wiz, just enjoy math & engineering. Please, inform me or post of other mil usefulness in regards to varmint hunting as you un-cover it. For what it’s worth I have never used a “mil dot master” or slide rule. There are also mil dot programs you can pay for on the net, but why ?

References:
http://www.scopedot.com/index.html


http://www.riflescopes.com/mildot/


http://www.bushnell.com/customer_service...%20100%20yards'




Bill1227
 
Bill:
Thanks for the information, I am sure that more than one question was answered by your post, I know it cleared some things up for me. Again thanks.
 
Bill...

Your points are lucid and well presented, and it is clear that you are skilled in the use of this type of reticle.

Readers have both sides of this issue.

My response was to the many comments on this board by guys that bought (or are thinking of buying) mil-dot scopes thinking they were somehow going to do the range finding for them, and to that group, I think the mil-dot is a very bad choice.

For PD's... I prefer the large military split image rangefinders, like the Wilde, cuz neither the mil-dot, the varmint plex, or the laser will do it well.
 
I have the same scope, really like it. Even if a guy doesn't use the "dots" for hold or ranging it still makes for a very nice reticle as they are not to thick or block as much of the picture as some "normal" cross hairs do.

I agree with TROY R's findings, at 14X it is approx 3" (at 200yrds it appered to be a perfect 6").
 
Thanks Bill, I just purchased a nikon 4.5 X 14. Very good information, Is your coyote 18" measured from the ground to the top of back? Any one have a nose to tail, or chest average?
 
Bill, an excellent post, i,m glad there are people like you, that can use mil dots effectively. Numbers do to me, what letters do to a dyslexic, i lose all the will to live.I,m sure its a great system, for people who have the brains, and the will to use it, i dont. What bugs me though, is how many of the 9" prairie dogs, didnt get enough food as a pup, and only made 8"? surely at 4 to 500 yards, thats got to make a hellova difference?We dont shoot at those sort of ranges here, but we do use the parallax corrector, and high mag to judge range, and thats fairly effective.
 
About seven or eight years ago....right after I learned "what mildot meant" /ubbthreads/images/graemlins/laugh.gif /ubbthreads/images/graemlins/laugh.gif .....I started buying mildot reticle scopes and have bought nothing else since.

They work very well for varmintng purposes as was completely discussed /ubbthreads/images/graemlins/grinning-smiley-003.gif /ubbthreads/images/graemlins/grinning-smiley-003.gif.....and besides.....it "sounds real KEWL" /ubbthreads/images/graemlins/tongue.gif /ubbthreads/images/graemlins/tongue.gif to tell someone that you use one when they are still just using a dot reticle like their grandfather used .....

THERE!!....Now that I've thoroughly thought about it and logically put it all down on paper, I finally know why I like mildot scopes.

On a little more straight-faced note.....once you learn and understand the system, they actuall do work very well for varminting.....at least for me they do. /ubbthreads/images/graemlins/confused1.gif /ubbthreads/images/graemlins/confused1.gif

-BCB
 
Baldie,

In referance to 1" at 4-500 yards while rangeing. I looked at me wallet card. I can tell you the differance of 1".

If I mil'ed a 16" woodchuck @ 1 mil = 445 yards
" " " " 17" " " " = 472 yards

Differance = 27 yards

It compounds as my bullet drop (22-250) goes from -19.03 @ 450 to --23.31 @ 475. 4" differance if ranged wrong.

Plus.........the wind and reading it.(hopefully it's calm /ubbthreads/images/graemlins/smile.gif)

Certainly not perfect way to range but likely better than some thought. A L.R.F. could easily be off more than that at that distance on varmints. The mil dot is free with the scope.

It would be tough for me to shoot varmints past 300 yards if I did not like numbers.
 
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