I think you are asking, if you are sighted in (holographic) can you then adjust the laser to that point of aim and then rely on the laser to be "ON TARGET" at a usable distance, the answer is yes. But if you can sight in at 15 yards using the laser. adjust you shots hi ( You aim your laser low, so your shots will be above your point of aim 1 inch) with this shot placement you should be on at 100 to 115 yards.If you can be very precise at 15 - 20 yards you should be very close out at 100. Hope this helps Fix Ya up.
Ok, on your sight set up, we need to look at the measurement above the bore. I was thinking of a bolt action. If your sight is above the bore 1 1/2 inch we need to recalculate the 15 yard zero. If your gun is AR15 type or clone with a rail on the receiver we need to adjust to a dead on at 15 to 18 yards to be on again at 100 - 115. Aline your sight with your bore in a parallel thought. 1 1/2 inch sight above the bore and you need to sight in for 1 inch low at 15 yards instead of the 1 inch hi. or better yet sight in you (Holo) sight and just adjust your laser to that point of aim. Then bench rest the rifle, check your point of aim on paper with the laser and the holo. See where you are on paper, study the ballistics for the 223 round you are using. You will see the fall of that round, what we are trying to do is cross at 15 then the bullet will rise and fall again to cross at 100. Hope I am making sense.
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If you are getting a path back to your gun with the green then it is going to happen with the red too. The path back is from scatter of the laser beam due to debris in the air. IT has nothing to do with color. You can site the laser in the daytime. You just need to bench rest the gun and and use a spotting scope or check it by walking up to the target. Remember that a laser spreads with distance and so you are going to be somewhere in the red or green dot. They are not meant to be an exact location of bullet impact.
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The color of the laser does matter, because the green is more susceptible to debris in the air than is the red. I have tested both under the same conditions and the green leaves a very bright trail and the red one does not leave one at all. I have also benchrested the red laser at 25yds and you cannot see it in the daytime with or without a spotting scope. Furthermore, that was not the answer to my question.
Eyecue, FYI - from Crimson Trace
Green Laser Sights vs. Red Laser Sights – Tactical Considerations
In broad daylight, a green laser appears with greater contrast than a red laser, giving green the edge in these conditions. While a red dot is readily visible at personal-defense distances on an overcast day, a green laser will shine from further away in even the brightest sunlight.
With green being the easiest type of laser sight to spot from a distance, Crimson Trace chose a rifle platform to make our green laser debut. The dot from the new MVF-515 Green, for example, was designed to be visible to the naked eye for up to 50 yards and visible with the assistance of 10X optics for up to 100 yards. In full daylight a 5 mW green laser sight makes it easy for rifle shooters to effectively cover multiple targets, and quickly aim on the move or while engaging a moving target.
At close range, the difference between a red laser and a green laser is apparent, but both can be brought to bear on a target quickly giving the shooter a decisive marker. In these situations, things like activation method, durability, battery life and concealability become more important factors when choosing a particular type or brand of laser sight.
Low- and no-light conditions introduce additional tactical considerations. The same phenomenon that makes the dot from a green laser sight appear to be brighter to the shooter makes the full length of the beam more visible as well, often drawing a line back to the shooter's position. A red beam will not show unless there is heavy smoke or fog in the air, while virtually any amount of airborne particulate is enough to make a green laser beam show a clear line through the air. In most personal-defense situations this is not an issue, but for military or law enforcement it may be worth considering.
That is exactly what I was asking. Thanks for answering my question and giving the additional 15 yd site info. I appreciate ya fixin me up!
The solution was very helpful and much appreciated!
You are making sense. It is an AR15. The laser is a low profile one mounted on the rail where a front sight would mount. It is 1 1/4 inches from the center of the laser to the center of the bore.
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