Is there a relationship between the Optic red dot rating to the value in MOA/click on its adjustment screws for height and windage? I looked at several Holosun red dots with ratings between 1 and 6 MOA, BUT their instruction manuals mostly states an adjustment of 1 MOA/click ? So then What determines our choice of MOA for the Optic? Is it just the distance you will be shooting from?
Red Dot MOA
- Thread starter Ivan912
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- moa moa adjustment red dot
Jim Diamantoni
Elite
It's the size of the dot. A 6 MOA dot is 6" at 100 yards. So at 50 yds it's 3", 25 yds it's 1.5" and 12 yds it's .75".
The MOA for the windage and elevation is determined by whatever the manufacturer states the red dot is in the instructions manual. Most scopes have a 1/4" click MOA adjustment which translates to 1/4" of movement at 100yds.
The basic understanding of MOA is X amount measurement at 100yds.
The specific MOA of the red dot is how many inches of coverage of a target at 100yds.
Lower MOA red dots are typically better for more accurate shooting at longer distance. Example: a 1 MOA red dot zeroed to the target should put a fired bullet within 1" of where the dot is pointed if environmental conditions are removed from the equation.
A larger MOA red dot like a 6 MOA covers 6" of a target at 100yds but only covers 3" at 50yds and 1.5" at 25yds making the 6 MOA red dot a better choice for short range point and shoot.
The larger the MOA the easier your eye will find the dot also.
Yes Jim I understand this. But how does the size count when you are moving the adjustment screws at a rate of 1 MOA per click at 100 yds or .125” at 12yds. If your red dot is rated at 2MOA at 100 yds, at 12 yds the size of the dot is .25”. My question is at 12 yds with a red dot rated at 2MOA, the size of the dot is .25” BUT the adjustment screws move at .125” per click! ?how are these related when you make the adjustment? According to the manual they just use the .125” regardless of the actual size of the dot at that distance!
Yes understood! BUT how do these numbers relate to the adjustment? Are they taken in consideration by the manufacturer who sets the value of the adjustment screws for how many MOA/inches per click? That’s where I’m lost? The relationship escapes my brain right now!
SimonRL
Hellcat
You are trying to make a comparison between moa dot size and moa unit of measurement. To the best of my knowledge the size of the dot in moa has nothing to do with how many moa the adjustment makes at 100 yds. For instance the 3 moa dot and 6 moa dot Sig Romeo 1 Pro both adjust at “approximately” 1 moa per click according to the manual. I own at least a half-dozen different makes of pistol red dots and they all adjust at 1 moa per click at 100 yards irrespective of whether they are 2, 2.5, 3 or 6 moa. If you’re trying to figure out how many clicks you need to make at 12 yds to move your POI say two inches the math never works. At that close I tend to work in units of 1/4 or 1/29 turn. At 25 yds the math tends to work. 4 clicks will move the POI about an inch, but at 10 yds the math is less concrete.
Jim Diamantoni
Elite
For zeroing in your dot, shoot at the distance you want from sand bags. Let's say 15 yards as an example.
From a steady rest, proper sight picture with the dot centered on the bullseye, squeeze off a shot.
Let's say you are 3" high and 2" right.
Rezero on the bullseye and without moving the gun, turn the adjustment screw down until the dot is in line with the bullet hole.
Now turn the windage screw left until it on the bullet hole.
Shoot another round and you should be zeroed. If not, repeat above steps.
Doing it this way, you don't need to worry about how many clicks you need to move.
From a steady rest, proper sight picture with the dot centered on the bullseye, squeeze off a shot.
Let's say you are 3" high and 2" right.
Rezero on the bullseye and without moving the gun, turn the adjustment screw down until the dot is in line with the bullet hole.
Now turn the windage screw left until it on the bullet hole.
Shoot another round and you should be zeroed. If not, repeat above steps.
Doing it this way, you don't need to worry about how many clicks you need to move.
In your opinion, do you recommend a 3 or higher MOA optic if I’m always shooting below 25 Yds? What about a multi reticle optic with a circle and dot of 32 MOA like the Holosun HE508T 2X?
SimonRL
Hellcat
That might work on a long gun, but a pistol is going to be way too fiddly. Besides it’s not exactly rocket science zeroing a red dot.
SimonRL
Hellcat
If we’re talking pistols, I prefer a small moa dot like the 2.5 on the Deltapoint Pro. I feel like a 6 moa obscures too much - even close. Some people say they’re easier to pick up, but frankly that’s all about training and repetition. I don’t like the circle dot reticle on my handguns. Again, beyond 10 yds I find the circle distracting. I shoot 4 in splatterburst targets and at 10 yds the circle is the same size as the target. Getting a red dot on target is about speed, not having to line up front and back sights, but I feel that the circle dot again brings a level of complication back because know your looking at two elements.
Bassbob
Emissary
I like 2 MOA.
Size of the dot has no bearing on the MOA for adjustments. And even that has little relevance. None for me. I could care less. Shoot 3 round groups from a rest and adjust until your on target. I don’t even count clicks anymore. It’s really not difficult.
Some people zero free hand because that’s how they will be using the weapon. I don’t. I zero from a rest or preferably a sled. Take as much of the human element out of the equation as you can. Otherwise you’re just compensating for bad habits.
Size of the dot has no bearing on the MOA for adjustments. And even that has little relevance. None for me. I could care less. Shoot 3 round groups from a rest and adjust until your on target. I don’t even count clicks anymore. It’s really not difficult.
Some people zero free hand because that’s how they will be using the weapon. I don’t. I zero from a rest or preferably a sled. Take as much of the human element out of the equation as you can. Otherwise you’re just compensating for bad habits.
HayesGreener
Ronin
This. Bring plenty ammo for fine tuning