The original range finder, it's right in front of you.

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One thing's for sure--all those years we had to study math in school there's finally an application for it that's fun.
 
I'd like to see ya range me with your fancy electronic doohicky while my "crude, inaccurate, imprecise"ly range estimated rounds are dancing ever closer. Hold still now...
 
I'd like to see ya range me with your fancy electronic doohicky while my "crude, inaccurate, imprecise"ly range estimated rounds are dancing ever closer. Hold still now...
I'm game.

What distance are you talking about?

What's your hold at that distance?
 
I took the US Army rifle training with an M1 on the pop-up target range, the longest was 600 or 650 yards - long ago. Iron sights, I shot expert. We also trained on the 45, which was with the one-hand stance in those days. What memories! The one thing I'll never forget was shaking that 45 and wondering if all that rattling meant the barrel might fly off when we shot it. Now no one seems to be able to shoot without a scope or red dot or something. I can't imagine why you'd need a scope for only 100 yards. Reminds me of my grandkids who can't operate a map, have to have an address to put into their phone or they can't get there.
 
Some may remember Roger Clouser writing extensively on this very subject for Precision Shooting Mag. with his lined front sight handgun systems (Elmer Keith-like)...and especially Ed Woszika's excellent 10ish pg. article, "How to Shoot Your Pistols Accurately at Extremely Long Range". Great stuff!
 
I'm game.

What distance are you talking about?

What's your hold at that distance?
About 200 yards beyond your MPBR, and just over the top of your head.:) The point being that people hit things with rifles BEFORE the technology evolved. Does the new stuff make it easier? Of course. But does that mean that one shouldn't understand and embrace the basics that have begotten todays tools? Hell no I say. The naysayers remind me of my nephew who doesn't know how to make a call on a rotary phone.
 
About 200 yards beyond your MPBR, and just over the top of your head.:) The point being that people hit things with rifles BEFORE the technology evolved. Does the new stuff make it easier? Of course. But does that mean that one shouldn't understand and embrace the basics that have begotten todays tools? Hell no I say. The naysayers remind me of my nephew who doesn't know how to make a call on a rotary phone.
Sure they hit things 100 years ago but distance records are being set everyday because of technology.

I'll continue to use tech to put me at unfair advantage
 
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Allow me to ramble for a bit, it will be worth it if you shoot open sight rifles much.

We all know that one minute of angle is 1.047" per 100 yards. But most don't know why this is.
100 yards is 300 feet. 300 X 12 = 3600 inches.
3600 X pi (because it's a radius around you) = 11,309.73355
11,309.73355 / 180 (degrees in radius) = 62.83185307 inches per degree
62.83185307 / 60 (minutes in a degree) = 1.047197551 inches per MOA

So what does it matter?

You've got this front sight hanging out there. If you've got a standard AR front sight, it's .072".
It's also a given distance from your eyeball, depending on your cheek weld. Lets go with 23.5 inches because that's my distance with an A2 rifle.

23.5 X pi = 73.82742736
73.82742736 / 180 = .410152374
.410152374 / 60 = .006835873
.072 (front sight width) / .006835873 = 10.53267081
So i know my front sight subtends 10.5 MA

So:
Distance from eye to front sight times pi = radius.
Answer from line one (radius) divided by 180 - one angle.
answer from line two (angle) divided by 60 minutes = one MOA
Front sight width divided by one MOA = front sight width in MOA.

Yup. Now try to do any of the above while under stress...
 
I'd like to see ya range me with your fancy electronic doohicky while my "crude, inaccurate, imprecise"ly range estimated rounds are dancing ever closer. Hold still now...

You make a good point. But you are assuming you can see where your rounds are hitting. In real life you don’t know if you’re high or low.
 
“Accuracy by volume,” area denial, suppressive fire, etc are all great strategic tools for military use. In a sniper vs. sniper hypothetical game, however, when one holds an iron-sighted rifle and the other more modern equipment, the latter has extreme advantage. It’s not so difficult to out-maneuver “luck.”
 
It's no accident that naval gunfire got a lot more accurate with the introduction of optical rangefinders that started to be used in WWI, and then the analog computers, plus better optical ranging, of WWII. Long range riflery has had similar advances.
 
I use this math often to demonstrate how terribly coarse in aiming precision iron sights really are.

I would never pretend a front sight could effectively be employed as a rangefinding device - ever. Holding that 10.5moa wide blade on target is one thing, but it’s laughable to think a guy can accurately measure multiples (and fractional multiples) of the blade width on target to precisely range a target is ridiculous.

Especially considering the illusory zoom of a front sight blade as viewed through an aperture. Varying environmental brightness and varying aperture diameters can make the front blade APPEAR larger or smaller against the target.

Let’s say I have a round gong at 100 yards. Just about the same apparent width as the front sight blade. Is it 10”, or 12”? Can you tell? So flipping that script - if I have a 30” gong at an unknown distance, again, about the same apparent width as the gong. Is it just a little bit smaller, just as the 10” gong was in the first example, or is it a teeny bit bigger, as the 12” gong was... because the difference in misjudging, misreading the relative size, is 280 yards versus 340. I generally don’t care to misjudge the range to my target by 60 yards. Now let’s say it’s a 4-5” wide prairie dog... it only covers ~1/3 the width of the front sight blade. Is it really 1/3 the width, or 1/4? Or 40%? Is the prairie dog 4”wide? Or 5? Or maybe it’s 4 5/8”.

The only conditions in which such crude, inaccurate, imprecise systems can work are when there’s a massive margin for error, effectively, within the maximum point blank range of the cartridge, aka, where rangefinding isn’t pertinent.
you must not have seen the Mosin Nagant Marksmanship Card.

RU-Marksmanship-Card.jpg
 
Alright, I know this is going to sound pedantic, but this is a pet peeve. I cringe when I hear someone say "one minute of angle is 1.047" at 100 yards".

Minutes of angle are units of angular measurement. A minute of angle is 1/60 of one degree of angular measurement.

An inch is a unit of linear measurement. A unit of angular measurement cannot become a unit of linear measurement and vice verse.

One minute of angle subtends one minute of arc on the circumference of a circle the center of which is at the vertex of that angle of minute. If the radius of that circle is 100 yards, the length of the arc subtended is 1.047". Note that this is a measurement of arc length, not a straight vertical distance as we are usually measuring off a target. But because the unit of angular measurement is so small, the curvature of the arc can be disregarded.
100 yards is 300 feet, is 3600 inches.

3600 inches x TAN(1/60)= 1.0471975 inches

so much for that.
 
you must not have seen the Mosin Nagant Marksmanship Card.

View attachment 960816

You must not read very well.

The only conditions in which such crude, inaccurate, imprecise systems can work are when there’s a massive margin for error, effectively, within the maximum point blank range of the cartridge, aka, where rangefinding isn’t pertinent.

1D282489-3584-41D7-8260-8E310CDB912E.jpeg

0-400m, well within the 0-500 yards I just cited above when our other misguided user claimed “200 yards past your MPBR” as long range - recognizing very, very few cartridges on the market have a reasonable MPBR longer than 300yrds. When you’re talking 500 and less, or the 400m cited on that card, if you aim at a man, you’ll hit a man. Worst case, you’re holding top of head and still impacting torso. The task is far more difficult due to the influence of iron sights and distance on group size, but the range has almost nothing to do with it. 1) You’re not shooting long range at only 400m or 500yrds, and 2) hitting a man-sized target, even a torso, is a far larger standard than most of us live by in civilian applications - when we see data on infantry performance of 20,000 rounds fired per combat kill, and we recognize hitting a body isn’t the same thing as hitting a heart.

But what I really find silly is your retort to the OP:

100 yards is 300 feet, is 3600 inches.

3600 inches x TAN(1/60)= 1.0471975 inches

so much for that.

“So much for that?” Are you really going to stand upon a difference of less than 2/10,000ths of an inch per hundred yards and pretend your post is meaningful? What devise are you pretending to use in this fantasy land which accurately measures group size or impact displacement down to the 10,000th? Or down to the 10,000,000th, as suggested by your last digit? What rifle are you pretending to be shooting which will shoot so finely anyone would be able to tell a difference of less than 2/10,000ths? Are you really standing up on 8 significant figures, measured in a system with literally NO significant figures? What device did you use to measure between the back of your eyeball to the front sight - how many sigfigs in precision did that device offer? It had better offer more than 8, and had better measure down below the 10,000ths place, as must the device you used to measure the width of the front sight blade. Further, what rifle are you pretending to shoot with such precisely refined sights which would allow a shooter to correct for less than 2/10,000ths per 100yrds such knowing the difference between your Our error even shooting 1,000 yards will rarely expose the difference between IPHY and MOA, such our sights or optics are rarely actually a full click of adjustment in error - which is an error literally more than 200 times larger than that which you’re extolling. So if we’re living within the bounds of a .047”/100yrds error, I think we’ll be fine ignoring 0.0001975”/100yrds. Hell, even confirming your claim is a feat of engineering in itself - you’d have to be measuring your range to within ~2/3 of an inch per 100yrds to prove the difference between 1.047”/100yrds and 1.0471975”/100yrds - not sure the cost to measure to this extreme precision is worth the moot exercise, since your sights or scope can’t adjust to it, and you can’t confirm you actually have meaningful digits in your calculus anyway...

“So much for that.” Much ado about nuthin’...
 
Ad hominem attacks do not prove your point. And no, varminterror's comment "you must not read well" was not ad hominem, it was based in the fact that the reading you presented did not support your position, and indeed undermined it. The Vintovka Dalnomer shown in the Mosin Nagant range card do indeed show a very basic method of 'rangefinding ' with the front sight, BUT what if the soldat was issued an M91, who's front sight was much narrower than a 91/30's, or an M44, whose front sight, while the same exact part as the M91/30's, was effectively wider due to being about 7 inches closer, or the enemy 'in sight' was much taller than the average Soviet soldier (quite likely, Germans tended to be taller, as there were fewer smaller ethnic groups in Germany than Russia. That 'Dalnomer' probably caused many a Russian soldier's death as he or she shot over the Greamn they were facing, and they returned accurate fire with their Mauser. We had one one our sight in targets when I was in the Army. I ignored it, and concentrated on learning how to accurately estimate distances without having to use my front sight.
 
When I was in school the teacher said Pie R Square.

I said no Sir. Pie R round.
Cornbread R Square.
 
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