Rifle Scopes Working raange of an Acog 3.5x?

[problemchild]

Im stuck on the idea that I need a day/night scope that doesn't need batteries. Which one of these reticles would work best for a do everything short to midrange day/night scope on an lmt 308?
Whats the effective range of a 3.5x?

 

[KIDGLOCK]

Re: Working raange of an Acog 3.5x?

I would do the top , as thats the ACOG style I'm used to , I know guys that like the circle and we go at it all the time .

Once zeroed per the instructions , the scope will perfoprm as they say it will . Mine's on my AR and I love it , zeroed at 100 meters , its gets boring wacking steel at 5-600 meters offhand . I may not hit MOA but its MOBG ( Minute of Bad Guy) . 3.5X takes a little getting used to , but it will be fine out to 800 meters .

They circle and dot are better for a CQB weapon , so thats a thought for ya . Get one and enjoy haveing a great scope .

 

[Redmanss]

Re: Working raange of an Acog 3.5x?

The standard crosshair on top is best for more precision. Bottom one is built for a M240, and as KIDGLOCK said, would also be great for CQB. I personally prefer the chevron style seen in the TA11E. Best of both worlds in my opinion, and also the style of reticle the US Army and Marine Corps adopted for general issue, not counting the NSN model.

As for working range, a 3.5x ACOG can easily push the 600-800m limits on man size targets providing good contrast to the background. Blending targets I'd put the reach of target ID around 500-600m.

 

[problemchild]

Re: Working raange of an Acog 3.5x?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Redmanss</div><div class="ubbcode-body">The standard crosshair on top is best for more precision. Bottom one is built for a M240, and as KIDGLOCK said, would also be great for CQB. I personally prefer the chevron style seen in the TA11E. Best of both worlds in my opinion, and also the style of reticle the US Army and Marine Corps adopted for general issue, not counting the NSN model.

As for working range, a 3.5x ACOG can easily push the 600-800m limits on man size targets providing good contrast to the background. Blending targets I'd put the reach of target ID around 500-600m. </div></div>

You mean this one? I think the horizontal hairs help level the rifle.

Or this.....

 

[DP425]

Re: Working raange of an Acog 3.5x?

He's referring to the bottom one- that's the standard issue reticle.

 

[Redmanss]

Re: Working raange of an Acog 3.5x?

Thanks DP425. The top one (from the 6x line) is again designed for use on M240 machine guns, and is calibrated for 147gr M80 ball ammo. Maybe the horizontal reticle would assist you in leveling your reticle, but that is a problem I've never experienced. Of course all shooters are different though.

For regular rifle ACOG models (TA-01B, TA-11E, TA-11J308), the .308 reticles are calibrated for 168gr from a 20" barrel. Not sure exactly what muzzle velocity and BC they use, but you might be able to find that out from a phone call. They were designed with the DDM in mind, firing an AR-10/SR-25 style rifle.

One of the biggest reasons I prefer the chevron reticle is you have aiming points for all the way out. Tip of the chevron is 100m, inside the "V" is 200m, tip of the vertical crosshair is 300m, and the rest are labeled. That chevron also works great for close range 2 eye open engagement, almost like using a reflex. I have 2 NSN ACOGs at home and will be selling one just to finance the purchase of a TA31RCO. Found out at work that they just work all too well for any situation you come across.

I highly recommend you find a fellow shooter who has a chevron style ACOG first and try it out, as everyone I've ever seen use it either loves it or hates it. Give it a test before the $1k+ plunge.

That puts me up to $0.04 worth. Hope it helped.

 

[skatz11]

Re: Working raange of an Acog 3.5x?

The 3.5x ACOG is a great fit for te LMT 308. My dad liked my TA31f on my AR so much he had to get the LMT and an ACOG. I advised him to get the TA 11 do to the more forgiving eye relief. It's a perfect battle sight, and the crosshairs are fine enough to allow for some precision.

 

[samnev]

Re: Working raange of an Acog 3.5x?

I have 4 ACOG's (ta01, ta31f, ta01nsn and ta31rcom4) and prefer the top reticle, as on the tao1nsn. It allows more precise shooting. At least for me.

 

[problemchild]

Re: Working raange of an Acog 3.5x?

Thanks for all the input. I have been asking around and even walking the range line to see if anyone has an acog. No luck so far. I guess they are too pricey for most weekend shooters.

I guess since Im using a 16 inch barrel I can use the reticle marks as a Kentucky holdover when I get a feel for how close they are to actual drop.

 

[DP425]

Re: Working raange of an Acog 3.5x?

Should also be noted the standard issue reticle, and perhaps all of the reticles- I'm not sure are designed for ranging as well. The horizontal stadia lines on the BDC reticle are supposed to relate to I think 18.5" at the given distance- the average width of a mans shoulders. The chevron is also included- the width of the base of the diagonal lines from outside to outside is your ranging point for 300m

 

[Sapper524]

Re: Working raange of an Acog 3.5x?

One thing to consider is the 7.62 models in 3.5 are a lot different than the standard TA31F military issue style. The eye relief is better but the reticle size is a LOT smaller. I own both and have a TA31F on a DMR clone ... it works great. I had used this style in the Army and it made me a believer. With that in mind I picked up a 3.5x. 7.62 model for my M1A and find the reticle almost to small to be usable. I don't have the best eyes in the world, yes I can shoot MOABG with it but in clutered backgrounds the reticle disappears fast. The chevron is useable but the rest if the BDC isn't. This just my thoughts. Ill try to get some pics later to illustrate.

Last point ... ACOG's work great when properly applied. Make sure you know what cartridge its calibrated for and what platform ... flat top, carry handle, etc. They make a LOT of models.

 

[problemchild]

Re: Working raange of an Acog 3.5x?

OK

Why do they make the reticles smaller on 308? Do they have any larger reticles in the ta11 series for 308? The small eye relief of the non-ta11 series keeps me away from those models.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sapper524</div><div class="ubbcode-body">One thing to consider is the 7.62 models in 3.5 are a lot different than the standard TA31F military issue style. The eye relief is better but the reticle size is a LOT smaller. I own both and have a TA31F on a DMR clone ... it works great. I had used this style in the Army and it made me a believer. With that in mind I picked up a 3.5x. 7.62 model for my M1A and find the reticle almost to small to be usable. I don't have the best eyes in the world, yes I can shoot MOABG with it but in clutered backgrounds the reticle disappears fast. The chevron is useable but the rest if the BDC isn't. This just my thoughts. Ill try to get some pics later to illustrate.

Last point ... ACOG's work great when properly applied. Make sure you know what cartridge its calibrated for and what platform ... flat top, carry handle, etc. They make a LOT of models. </div></div>

 

[edwin907]

Re: Working raange of an Acog 3.5x?

Trijicon is generally great help when you need the ballistic info about the BDC reticles.
The TA11C and TA01B (4X) both use a BDC matched to M852 out of a 20" barrel mounted to the carry handle (2500fps, .447BC HOB 3.5").
This actually works out to be a great match to 75/77gr 5.56 ammo fired from a 16" AR with the ACOG mounted to the flat top receiver. You are very close, under MOA deviation, all the way out to 800 meters. I had great success with this combination and have just recently upgraded the rifle to a USO SN-3/Aimpoint T-1.

 

[DP425]

Re: Working raange of an Acog 3.5x?

If I had to guess, it's not a factor of it being .308, but rather it being a 3.5c instead of 4x- that will automatically make the BDC reticle smaller. Think of it in terms of a FFP scope- to keep the reticle accurate, as you decrease magnification the reticle must also decrease. Could also be a factor of the thickness of the reticle itself.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: problemchild</div><div class="ubbcode-body">OK

Why do they make the reticles smaller on 308? Do they have any larger reticles in the ta11 series for 308? The small eye relief of the non-ta11 series keeps me away from those models.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sapper524</div><div class="ubbcode-body">One thing to consider is the 7.62 models in 3.5 are a lot different than the standard TA31F military issue style. The eye relief is better but the reticle size is a LOT smaller. I own both and have a TA31F on a DMR clone ... it works great. I had used this style in the Army and it made me a believer. With that in mind I picked up a 3.5x. 7.62 model for my M1A and find the reticle almost to small to be usable. I don't have the best eyes in the world, yes I can shoot MOABG with it but in clutered backgrounds the reticle disappears fast. The chevron is useable but the rest if the BDC isn't. This just my thoughts. Ill try to get some pics later to illustrate.

Last point ... ACOG's work great when properly applied. Make sure you know what cartridge its calibrated for and what platform ... flat top, carry handle, etc. They make a LOT of models. </div></div> </div></div>

 

[problemchild]

Re: Working raange of an Acog 3.5x?

Got it. So is what I read about the short eye relief (1.5") true? I read it was a real pain to find the clear spot and you were always hunting for the clear view. Will the 1 inch gap allow the rifle to smack my nose on a 308?


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DP425</div><div class="ubbcode-body">If I had to guess, it's not a factor of it being .308, but rather it being a 3.5c instead of 4x- that will automatically make the BDC reticle smaller. Think of it in terms of a FFP scope- to keep the reticle accurate, as you decrease magnification the reticle must also decrease. Could also be a factor of the thickness of the reticle itself.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: problemchild</div><div class="ubbcode-body">OK

Why do they make the reticles smaller on 308? Do they have any larger reticles in the ta11 series for 308? The small eye relief of the non-ta11 series keeps me away from those models.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sapper524</div><div class="ubbcode-body">One thing to consider is the 7.62 models in 3.5 are a lot different than the standard TA31F military issue style. The eye relief is better but the reticle size is a LOT smaller. I own both and have a TA31F on a DMR clone ... it works great. I had used this style in the Army and it made me a believer. With that in mind I picked up a 3.5x. 7.62 model for my M1A and find the reticle almost to small to be usable. I don't have the best eyes in the world, yes I can shoot MOABG with it but in clutered backgrounds the reticle disappears fast. The chevron is useable but the rest if the BDC isn't. This just my thoughts. Ill try to get some pics later to illustrate.

Last point ... ACOG's work great when properly applied. Make sure you know what cartridge its calibrated for and what platform ... flat top, carry handle, etc. They make a LOT of models. </div></div> </div></div> </div></div>

 

[problemchild]

Re: Working raange of an Acog 3.5x?

I'll give them a call. I will be using this on a flat top lmt 308 with a 16" barrel.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: edwin907</div><div class="ubbcode-body">Trijicon is generally great help when you need the ballistic info about the BDC reticles.
The TA11C and TA01B (4X) both use a BDC matched to M852 out of a 20" barrel mounted to the carry handle (2500fps, .447BC HOB 3.5").
This actually works out to be a great match to 75/77gr 5.56 ammo fired from a 16" AR with the ACOG mounted to the flat top receiver. You are very close, under MOA deviation, all the way out to 800 meters. I had great success with this combination and have just recently upgraded the rifle to a USO SN-3/Aimpoint T-1.

</div></div>

 

[Sapper524]

Re: Working raange of an Acog 3.5x?

Tried to take some reticle pics today but failed horribly ... Ill get out the sled and a tripod tomorrow

 

[DP425]

Re: Working raange of an Acog 3.5x?

I don't know about the eye relief on the 3.5x but the 4x seems fine. It's a small optic on a low recoil rifle- it doesn't need 4" of eye relief and given the size of the ocular, it's not going to "line-up" as nicely as a full-size scope.

Anyway, I've never had a problem with them. Having said that, I do think there are better options available if you don't need to be able to bounce your optic off concrete