ACOG Zero

[kestak]

Greetings,

I just need to make sure I got it right because I may have to explain it:

SS109 62 grains:
ACOG (I use TA11F) on M4 Zero at 25 on chevron and 300 hit on chevron.
Top line is 350, 400 line is 400, etc.....

M855(what my rifle does right now, proven and working up to 600):
ACOG (I use TA11F) on M4 zero at 100 chevron and 25/300 top of line. 400 is 400 line, etc...

Military does the zero whatever the round at 25 right? So how the lines work out then?

Thank you

 

[C-grunt]

When I zero'd my SDMR we did it with the top of the post beneath the chevron. I was never able to really get it zero'd but it was close enough for combat work.

 

[kestak]

So it is exactly like I did mine.

I have a RRA car-15 and I cloverleaf up to 200.
Of course, not with the ss109 because of the least precision of the bullets.

 

[gotzero]

I have a crosshair one and I zeroed the first crosshair at 100m. I know some of the other ones are a little tricky to understand, but the crosshair one has subtensions for every 100m, works like a top on my rifle.

 

[Ehtereon11B]

The military zeroes iron sights and CCO at 25 meters. ACOGs are zeroed at 100 and at 175 to confirm.

 

[HorseSoldier]

Military does the zero whatever the round at 25 right? So how the lines work out then?

As was noted, ACOGs are designed to be zeroed at 100 meters.

If you have to use a 25m zero range you use the 300 meter tick mark inside the chevron (on a TA11F) as your point of aim. Confirm and fine tune at 100 meters if/when you get a chance.

As for how the lines work in general -- tip of the chevron is 100 meter, underside of the chevron is 200, tick mark is 300 and then it should be self explanatory on the reticle from there. I've never engaged a target small enough that adjusting between the top of bottom of the chevron makes any difference at the ranges they're used at.