How Low Do I Sight in at 25 yards to be on at 200yds?

This past year I saw a duffer post a picture on the first day of deer season of him sitting in his deer blind with his brand new AR15 flattop. He posted something along with the picture of him being ready to smoke that big buck that frequented this area. The kicker was that his AR was a flattop with no iron sights and no optic sight of any sort mounted on it. Someone in the comments pointed out that he had no way to aim his rifle and he said he just sighted along the flat "sighting plane" on top of the rifle because that was the way the factory had the rifle set up. Lord love a duck.
 
Oh well. Bore sight your rifle at 25 yds and fire one shot. Set up with the same sight picture and move the cross wires from the aiming point to the bullet hole. Next move the target to 100yds and fire one shot. Now move to the point of aim you want and fire again. /that first shot at 100 yds will be a good 3" high, doesn't matter so long as you can see the shot. Two shots and your gonna be darn near there!
 
Polock said:
Oh well. Bore sight your rifle at 25 yds and fire one shot. Set up with the same sight picture and move the cross wires from the aiming point to the bullet hole. Next move the target to 100yds and fire one shot. Now move to the point of aim you want and fire again. /that first shot at 100 yds will be a good 3" high, doesn't matter so long as you can see the shot. Two shots and your gonna be darn near there!
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I do something very similar, although with bolt actions. I take the bolt out, center the bore on a target at 100 yards, move crosshairs to center of target. Usually gets within 3-6" at 100 with the first shot. Then just move the crosshairs to the bullet hole, shoot a 2nd shot and you're usually right where you want or need to be at 100 yards. My uncle showed me that trick about 20 years ago. Works every time.
 
Old posts never hurt as its interesting to re-read some of the old ways of doing things. Some ideas are still good, some are not so good. GC's post made me laugh out loud.
 
GC said:
This past year I saw a duffer post a picture on the first day of deer season of him sitting in his deer blind with his brand new AR15 flattop. He posted something along with the picture of him being ready to smoke that big buck that frequented this area. The kicker was that his AR was a flattop with no iron sights and no optic sight of any sort mounted on it. Someone in the comments pointed out that he had no way to aim his rifle and he said he just sighted along the flat "sighting plane" on top of the rifle because that was the way the factory had the rifle set up. Lord love a duck.
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Funny stuff !
 
I couldn't see anything at night using the flat top, maybe I needed a front peep. I purchased a thermal scope instead. Zero at 100 yards, I'm almost 2" low at 25 yards. 20p. Shoot every 25 yards out to your max, than you know.
 
As much as I HATE max point blank range methods of zeroing...I do use it for a couple SBRs. Both 300 BLK and 223 that I would consider "personal defense".
That said...If you're considering a 25 - 200 yd zero...you owe it to yourself to TEST IT. If you're not willing to test, you're just being lazy.

This is a perfect example of a good experiment to make sure you know what your bullet is doing along it's flight path.

 
c_bass16 said:
As much as I HATE max point blank range methods of zeroing...I do use it for a couple SBRs. Both 300 BLK and 223 that I would consider "personal defense".
That said...If you're considering a 25 - 200 yd zero...you owe it to yourself to TEST IT. If you're not willing to test, you're just being lazy.

This is a perfect example of a good experiment to make sure you know what your bullet is doing along it's flight path.

Click to expand...

MPBR for zero is all I use. For big game I limit myself to 300yds and have only taken a shot that far one time in my life. But most my rifles can handle pretty much any shot I take, if I do my part, with a dead on hold! Usually after I have a load worked up, it's cronographed and my chronograph will figure it out for me and I simply go shoot it to make sure it's right. I think people trying extra long shot's lack the skill and practice to take the shot in the first place! Few practice that much but am certain none will admit to it!
 
Polock said:
I think people trying extra long shot's lack the skill and practice to take the shot in the first place! Few practice that much but am certain none will admit to it!
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Well what's "extra long" to you?
Our local range only goes to 300 yds, so that's as far as I can train without travel time.
 
Polock,
What do you consider "extra long shots" ?
My long shot on game might be extreme long distance to some and only mid range to others.

I'm not talking about people that have a 6.5 needsmore and a 30 x scope that think they are good to 1k ,but never leave the 100 yard line.
 
cropdamage said:
Beat me to it..haha
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I mean...I train because I enjoy it and I shoot matches. Both of which have made hunting easier.
My 6 Creed shoots better at 300 than most people shoot at 100, but I spend time working up accurate loads and I use good equipment. It's not to toot my horn, just to say that it's very close minded to assume people lack skill or don't train.

Everyone starts somewhere.
I started because I shot 17 rounds at a deer over the course of 3 weekends.
Didn't take long to realize practice will only take you so far. There is no cure for bad gear.
 

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Polock said:
MPBR for zero is all I use. For big game I limit myself to 300yds and have only taken a shot that far one time in my life. But most my rifles can handle pretty much any shot I take, if I do my part, with a dead on hold! Usually after I have a load worked up, it's cronographed and my chronograph will figure it out for me and I simply go shoot it to make sure it's right. I think people trying extra long shot's lack the skill and practice to take the shot in the first place! Few practice that much but am certain none will admit to it!

Now that's hilarious... Couldn't be any further from the truth. Love how people put their shooting skills, or lack there of onto others 🤣 😂
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My rifles shoot under an inch at 300 yards. I can shoot them in the eye if I really want too...

The last thing I need is Joe Bob from the internet telling me how far I should and shouldn't be shooting 🤣

I suppose the 20 big game animals and pile of dogs I've killed from 500-1150 was just all luck too right 🤣

I have a private 1400 yard range 15 minutes from my house. That tells you about all you need to know about me and my shooting skills...I shoot as good or better at 1K than most do at 300.

300 yards .35"
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1K load testing
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1200 yards under a dollar bill 7-300/180g ELDM
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This should give an idea. It probably isn't exact, but it should be in the ballpark.

ETA: I didn't notice the OP is almost 13.5 years old.

Ballistic Calculator​

INPUT VARIABLES​

Ballistic Coefficient:0.265
Velocity (ft/s):2700
Weight (GR):60
Maximum Range (yds):500
Interval (yds):25
Drag Function ():G1
Sight Height (inches):1.5
Shooting Angle (Deg.):0
Zero Range (yds):200
Wind Speed (mph):0
Wind Angle (Deg.):90
Altitude (ft):500
Pressure (hg):29.53
Temperature (F):59
Humidity (%):65

Ballistic Results​


RangeVelocityEnergyTrajectoryCome Up (MOA)Come Up (MILS)Wind DriftWind Drift (MOA)Wind Drift (MILS)
02700971.0-1.50.00.0000
252616912.00.00.10.0000
502535856.01.1-2.1-0.6000
752455803.01.9-2.4-0.7000
1002376752.02.4-2.3-0.7000
1252299704.02.4-1.9-0.5000
1502223658.02.1-1.3-0.4000
1752148615.01.3-0.7-0.2000
2002075574.00.00.00.0000
2252003535.0-1.70.70.2000
2501933498.0-4.11.50.5000
2751865463.0-6.92.40.7000
3001798431.0-10.53.31.0000
3251733400.0-14.74.31.3000
3501669371.0-19.65.31.6000
3751608344.0-25.36.41.9000
4001549320.0-31.87.62.2000
4251491296.0-39.28.82.6000
4501437275.0-47.710.12.9000
4751384255.0-57.111.53.3000
5001334237.0-67.712.93.8000
 
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