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Discussion in 'Black Rifle Forum' started by Ken43, Oct 16, 2019.
What distance do you zero the red dot sight??? On a AR rifle.
Same as rifle your zeroing
50/200 is a good zero for an AR.
Some zeroing targets:
For me, depends on the distance I am shooting. Since this is in the black rifle forum, I assume the red dot is on an AR. I would zero at 50 yards/meters which would keep you approximately on target all the way out to 200, give or take an inch or 2 of difference in POI.
What is this “zero”?
Well that's the most convoluted thing I'll see today...
That is the typical point where the bullet starts tumbling. The 50\200 thing is when you set the timer on the bullet to start tumbling at 50 yards. The 200 means it will tumble for 200 yards, then explode.
Personally, I zero at 50yds with red dots. That may or may not be appropriate for your use.
What about the laser? What distance should I zero it for to get the bullets tumble and explode?
It varies. Check the technical specs of your laser. You can ask over at arfcom, but since the AR has the only bullet that will circumnavigate the globe and still hit the 10 ring, you'll get a lot of crazy answers. :makescirclearoundear:
My home range is 115 yards, so that's what I Zero the rifle Red Dot Sights at.
All "zeros" are a compromise. Bullets do not travel in straight line on earth, like light does.
Anything longer or shorter distance (before or beyond) will not be "zeroed", but impacts will land within a certain neighborhood. At really short distances (combat distance, inside a house or on the street) sight over bore is the main concern, so you can "miss" a small target at short distances too. With an AR rifle this can be as much as 4-5" below POA depending on the size and height of the face and how high the scope is mounted.
Be realistic, not Hollywood. What distance, size, will 99% of your targets be within?
Zero to a certain distance (pick a number), train using that "zero", Be happy.
If you are anticipating going to a carbine class, zero the AR to 100 yards, and train from there.
There's a reason I posted up a ballistics chart.
It demonstrates that a 50Y zero is the most versatile zero to have unless your ranges never change, they are known and you know your hold overs/unders, or you are shooting bullseye.
It allows all shots made between 50-250 yards to have no more than ~2.3" deviation at most. That's the widest range use you can get out of the cartridge so it makes sense both ballistically and in the general sense of what most people are wanting from their rifle.
Mrs. BlueScot has an AR-15 .223 with a red dot and when we sighted it in we used 100 yards which seemed to be an applicable distance for our shots out here in Idaho. It was my first red dot on a rifle and I'm thinking that anything over 150 yards with this red dot is safer than I would like. I tried all different size of dots and came away with my opinion that a red dot is a much shorter ranged sight than I had understood it to be.
IMO a 33meter/36yard zero is the best for 5.56. The main issue with it though is most ranges are not set up for it, for instance most are 25 yd, 50 yd, 100 yd, etc. So you should use a range finder and moveable target to set up at the right distance. Another problem also is the zero should be confirmed at 300 also and some ranges don't go out that far. I'll admit the 50 and 200 zero is just easier for most people.
It's a 3-inch dot @ 100 so... sometimes less is more.
Unless I missed it, not one person asked all the pertinent questions.
1. For what purpose? (Probably the most important question)
2. For what ammo/what are its ballistics?
3. For what sight height?
Could be more I haven't thought of.