Trijicon acog 3.5x35 scope

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MartyK2500

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As soon as next BCL102 pre-order opens i am getting on it this time!
Was looking at the acog, 3.5x35, red chevron .308 reticule.

How is the drop reticule calibrated?
Using a certain grain of bullets at a certain speed?

My friend has got a 500M range on private land, so essentially, i am looking to ring a 12'' gong at 300-500M, and/or a 18'' silhouette steel at 500M
 
Trijicon website clearly discusses what their BDC is setup for. Just a heads up, you will not win any Olympic level matches using an ACOG, they are designed to produce solid centre of mass hits on humans.

ETA: Here it is..

What bullet was used to calibrate the ACOG scopes?
The TA01, TA11, & TA31 (.223) were designed for the 5.56mm, 20 inch barrel, 55 grain bullet, and M16/AR15 carry handle mount. The TA01B & TA11C(.308) were designed for the 7.62mm, 20 inch barrel, 168 grain bullet, and M16/AR15 carry handle mount. The TA01NSN was designed specifically for the US Special Operations Command SOPMOD M4 Carbine. To meet their requirements, the reticle bullet drop compensator and range finding stadia lines were based on the trajectory of the 62 grain bullet from a 14.5 inch barrel, flattop mount (Picatinny rail Mil.Std.1913).
 
For 500m there is a x6 ACOG, it's north of 3k though.

Edit: Well, disregard, it's a MG sight with 4MOA adj and BDC for M80 ball.
 
Last edited:
Kidd X said:
Trijicon website clearly discusses what their BDC is setup for. Just a heads up, you will not win any Olympic level matches using an ACOG, they are designed to produce solid centre of mass hits on humans.

ETA: Here it is..

What bullet was used to calibrate the ACOG scopes?
The TA01, TA11, & TA31 (.223) were designed for the 5.56mm, 20 inch barrel, 55 grain bullet, and M16/AR15 carry handle mount. The TA01B & TA11C(.308) were designed for the 7.62mm, 20 inch barrel, 168 grain bullet, and M16/AR15 carry handle mount. The TA01NSN was designed specifically for the US Special Operations Command SOPMOD M4 Carbine. To meet their requirements, the reticle bullet drop compensator and range finding stadia lines were based on the trajectory of the 62 grain bullet from a 14.5 inch barrel, flattop mount (Picatinny rail Mil.Std.1913).
Click to expand...

Thanks for that, had browsed their site and somehow missed it.168gr is still vague, as we do not know what speed it's comming out,
but i could play around for fun,
Wouldn't need to be bang on as it will be a 100-500M plinker, with 2.5moa+ targets

BlackVoid said:
For 500m there is a x6 ACOG, it's north of 3k though.

Edit: Well, disregard, it's a MG sight with 4MOA adj and BDC for M80 ball.
Click to expand...


I figure, with a 3.5X, i will sell my 12'' gong at 400M very well, as i see it good on my bolt rifle scope at 500M with 4.5X
 
I found the difference between 3x (magnifier) and 4x (acog) pretty significant. There was a glass quality difference obviously, but 4x just had a bit more perceived magnification than one would expect from an additional 1x of zoom. My two cents.
 
I had a 3.5X35mm TA11 for quite a few years (in 5.56). I regularly shot a 8” gong at 300 yards, easy to hit. I would also shoot a Fig 12 target at 500 yards, again no problem at all.
 
If on a budget and are looking at the 3x Acog for around $1100, Bartons have two older models Ta33's for sale. Both in .308 BDC.
 
Just saw that, while tempting i will wait for the model i really want.
As far as calibration i think i have found my solution on another forums.
Someone put a milrad tall test target at 100M, made the lines a bit thicker, benched the rifle and looked at the zero of the scope with zero of target, then could determine each BDC line in scope equated to how many mills.

Once i know each line represents how many mills, it can be used with many different loads once chronied.
So once figured i could print a small paper, plastify, and stick on buttstock.
Instead of showing 100M-200M-300M and so on,
My paper could say 100M-212M-330M... as an example
 
Yes, i am actually on the fence for a vortex 1-6x24 razor gen ll instead of ACOG
I wanted this build to have a rough and tough feel to it,
Something along the way of a BCL102 (308 being one of the most if not the most available cartridge in country), good quality metal flip up backup sights, an ACOG with a quick detach mount...
The ACOG is a proven optic even if roughed up conditions, as for rifle, that's another story, the reviews will tell in a year or so
 
Cool fact and way to solve this.
I have an app called strelok, and they do have the TA11 308 BDC chevron reticule.
So when you input your chrono data, they give you your ranges at hash marks.
Noticed while playing around with velocities, that 100-400M stays close enough.
And will be perfect for my intended application.
 
I ordered a TA33 from Barton's before Christmas for my 102, I have other glass, like a vortex 1-8 and a couple of PST's I can try too, but I think the Trijicon might be a good choice for hunting. We'll see when it finally shows up..... The scope I mean, The rifle probably early in the new year, as it's an FDE and we're hitting the usual Alberta pre Christmas / post Christmas cold snap. so I've got time to build some loads and #### with things before I go out and freeze my ass off testing stuff.
 
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