Acog question

[justang1997]

Ok this is gonna be technical so bear with me.

On a TA01 nsn 4x32 with the torso ranging reticle, wouldn't the 500 meter line be 1 mil in width? I'm figuring the torso line measures 19.5 inches at various ranges. 19.5 inches is half a meter. The 500 meter line would measure half a meter at 500 meters so that should equal 1 meter at 1000 meters, or 1 mil, correct?

[DDgunslinger]

This should answer all your acog questions in regards to hold over at various ranges.

[justang1997]

That's a nice chart thankyou but not what I'm looking for. I want to use the lines to measure things of known size other than torso's to calculate distances like you would with a mil dot reticle or to also measure windage holds for windy days.

[justang1997]

Ok, well if anyone cares, I emailed trijicon and they said the 500m line is 3.3 moa. A mil is equal to 3.43moa, so its pretty darn close. Close enough anyways.

[ChopperDoc]

Reviving an old thread, and a little off topic, but in reference to the BDC chart above:

I believe that the ACOG is designed to be zeroed at 100m. If you choose any other distance for your zero the BDC will be off.

100 yards is just over 91 meters.

The 100 meter zero is interesting because the 5.56 round barely crosses the line of sight right at the 100m mark by the smallest amount and then begins to drop back down versus the 25m zero where the bullet crosses the line of sight right at the 25m point and stays above until approx 320m range.

With the 100m zero you have from a max of about 2" low 25m to 100m so anything less than the 100m indicated on the reticle just use the 100m POA for a POI in the kill zone. 200m is about 3" low and 300m is about 9" low.

So, question on the military range setting up your optics: Do they have you set the battle sight zero 2" low at 25m then verify at 100m? I recon that is what I would do if'n I had one.

I don't use a 100m battle sight zero, but I probably would if I had an ACOG so I could use the BDC.

[justang1997]

Yeah, that would be a good idea. I just zeroed at 100 meters when I was in service and the one I have now is also zeroed at 100m. If I did zero at 25 yards, I would probably try for slightly less than 2 inches as opposed to slightly more. But im sure thats obvious. Like closer to the 1.9 side of 2.

[LCPL_NBREW]

this is straight from a power point that the Marine corps uses in rifle qual

Adjustment increments are 1/3 inch per click at 100 meters. This means that 3 clicks are required to move the bullet impact one inch on a target at 100 meters. At 36 yards 9 clicks are required to move the bullet impact one inch

When zeroing the AN/PVQ-31 at 100 meters, the tip of illuminated chevron is used to acquire the Point of Aim/Point of Impact. This method ensures maximum accuracy out to 800 meters utilizing the Bullet Drop Compensator.

Hope this helps