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Long range 101 + amendments

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 17:09
Rancid Coolaid View Drop Down
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First and foremost, what follows below will not make you a good long range shooter.  The purpose of this brief introduction is to acquaint you, the novice, with basic concepts in long range optics.   Absolutely nothing stated herein can function as a suitable substitute for formal instruction, training, and practice. There is no "quick fix" or magic optic that will turn a novice into an F class champion shooter or a super secret squirrel sniper.

 

Prior to an educated discussion on long range shooting, we must first establish vocabulary.

 

A "sniper rifle" is a precision rifle issued to a billeted law enforcement or military shooter.  Yes, several companies market rifles with the word "sniper" in their model designation (Remington Police Sniper Special, for example), but in educated circles, a sniper rifle is not what a civilian takes to a range for punching holes in paper.

 

A "long range rifle" is nothing more than a precision rifle deployed against distant targets.  There are no specific traits that make a rifle a "long range" rifle. (There are traits that make a rifle NOT a long range rifle.)

 

A "long range scope" is an optical aiming device designed to magnify the target to a sufficient degree to allow accurate shot placement at range.  Since some shooters can group rounds at 1,000 yards with open sights, we shall dispense with the absolutes regarding optics at long range.  One need not mount a 20X scope to make accurate 600 yard shots.

 

What follows below is not intended to be all-inclusive.  This is not a guide to purchasing a competitive benchrest optic, nor does this information apply to "long range hunting" - which I highly discourage in big game hunting.  The information is meant to apply to new shooters wanting to move into "long range" target shooting.

 

 

 

Before we dive into specifics, one more clarification

 

I am a visual learner, the picture below demonstrates the difference between the frequently misused terms "precision" and "accuracy"  You can have one, or both, or neither.


The plural of "anecdote" is not "data."
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 17:34
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Super

Everyone who comes to this forum needs to read this before they start posting.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 17:54
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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This is a very good article RC. The points you make are accurate, yet simple enough to understand. Hopefully, some will read this before posting all their questions about the new long range craze. Good solid info.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 18:22
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Rancid, 

Awesome piece. Something tells me it had a little something to do with that 1500 yard target scope thread. Wink

This makes me feel better about my first long range target build. I went with a Remington700 SPS Tactical .308 package with 20" heavy barrel in a B&C medalist light tactical stock. I've been shooting since i was able to hold guns but i knew being my first step into long range shooting, i wasn't going to be a "mall ninja" or "tacticool". I wanted a fairly affordable project to start out with. I've shot bigger calibers but this was just a well rounded and well priced venture.

Most of my shooting with be 600 yards and in, with a few here and there over that distance. Rancid you're making me feel even better about my choice of Bushnell's 6500 elite 2.5-16x42 with DOA reticle for the distances ill be shooting at.

I love OT because there are a good # of very knowledgeable people that will give no bs advice. This is a thread, all people new to the mid-long range game, should read. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 18:57
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Excellent read and alot of valuable information.  I'm going to re-read it.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 19:31
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After re-reading it, I was wondering if some one could add more input in the area of "matching turret to reticle". I would like a more detailed explanation of this information.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 20:43
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If a turret is in increments of mils and the reticle is in increments of mils (in an FFP scope or an SFP scope at a designated power setting), there is no math in adjusting fire:
1.  define the mil correction on the reticle
2.  click in on the turret
3.  fire.

 If the reticle is in mils and the turret is in MOA:
1.  determine the correction in mils on the reticle
2.  convert mils to MOA
3.  check your math
4.  get pissed off that the battery just died in your solar calculator because it is an overcast day
5.  ask the guy next to you how many mils are in a minute of angle
6.   figure out what a .25MOA adjustment is at 400 yards
7.  hope you didn't screw up the math
8.  Click in adjustment in MOA (1/4MOA at 400 yards equals a 1-inch movement per click on target)
9.  fire
10. wonder what you screwed up because your round isn't on paper
11. recheck math
...

It is doable.  Most who have been shooting for 15 years or more have had to learn to do it.  But it ain't the best way.

Another monkey in the wrench is the fact that MOA are usually broken out in 0.25MOA increments rather than in tenths, like a mil.  Mils are easy, easier to break up, easier to calculate - at least for anyone with base-10 math skills, base-4 math skills, not so much.



Make more sense or confuse things even more?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 20:51
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or just range in with a lrf, dial in the moa directly , and circumvent the mil vs. moa altogether.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 21:00
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Or that.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 21:02
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If you do happen to own/use a mil reticle/MOA turret, a Mil Dot Master can be a life-saver.

Mil-Dot Master
Mil-Dot Master
Stock # - MD1
  • Estimating Target Size
  • Determining Range to Target
  • Correcting for Bullet Drop
  • Correcting for Wind Drift
  • Correcting for Uphill/Downhill
  • Correcting Correction to Mil (holdover)
  • Correcting Correction to MOA (sight adjustment)
$29.95



Post Options Post Options   Thanks (1) Thanks(1)     Back to Top Direct Link To This Post Posted: June/22/2010 at 21:45
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very nice...

simple read ...
 
what is that old K>I>S>S
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 22:10
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Tag.

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/22/2010 at 22:35
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Tag for info.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 06:16
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Great job RC
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 11:59
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very nice write up, Jeff.  Not too much information to absorb in a first read, well "designed", lead in for the sequals to come...
I know you labored over whether to do this or not...
Good job. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 13:37
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No, I labored over whether or not to post this, the wondering started after the doing was complete.

Another more in-depth is coming soon.  This is very, very basic, but will answer many questions for new shooters.  I hope.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 14:29
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Thanks for your effort we do seem to get the same questions over and over.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 17:38
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Great job, Jeff! 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 17:50
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Thanks for that wealth of info.RC. Like the sign says"Pearls of Wisdom are Heard not Spoken"Bow
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 18:43
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Rancid,

Do you know how long its been since i heard "Mall Ninjas"?

Just re-read the entire thing + amendments.  Very good stuff.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/23/2010 at 22:40
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Very good article RC!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/24/2010 at 06:22
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I like the revision
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/24/2010 at 10:31
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Good one Jeff!..........tag
 
Doug
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/25/2010 at 02:33
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Nice read and even to those that shoot often, there are still some good pointers in your write-up. Thanks.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: June/27/2010 at 11:41
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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Originally posted by 8shots 8shots wrote:

Nice read and even to those that shoot often, there are still some good pointers in your write-up. Thanks.
One more point that should be made. Now that you mention shooting often. If you are going to play the long range game, you should be prepared, and willing to shoot often. It is a parishable skill, and if you don't practice, you won't be good at it. It's an expensive game to play. With shooting a lot, comes lots of ammo, and new barrels, ect, ect.
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