Rifle Scopes Which ACOG for LR w/223

Re: Which ACOG for LR w/223

The proper model is the TA-31 F for M16, however, that assumes you're shootin' something like M855. Your WOA, I suspect, has a .223 chamber instead of a 5.56 chamber, so, unless you're handloading, you won't get BDC to be exact, not that it's ever exact anyway. Remember, the ACOG is about rangefinding/BDC in a heartbeat, with center of mass holds on E sized targets. With no holdover or rangefinding math going on in your head you can concentrate on your wind favor and addition/subtraction movement formula. Also, remember a very consistent stockweld is demanded by the ACOG as it is not parallax free. Accounts of 15 inches and more of perspective of aim divergence are known at 600 meters with the ACOG.
 
Re: Which ACOG for LR w/223

I have a TA31RCO-M4 that I'm quite happy with. I have not had an opportunity to take it past 400 yards, but within that range, the BDC has been excellent.

Its retical has a BDC up to 800 meters.
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Re: Which ACOG for LR w/223

The short answer is that there is not an ACOG that is built to mirror the ballistics of the 69gr FGMM round.

See here (under Nos. 3 and 4): http://www.trijicon.com/faq.cfm#ACOGanchor

You may be able to find an ACOG that will match up ballistically with your rifle and ammo, but it will take some work on your part to figure out your dope and to then see which ACOG gets you "in the ballpark" in terms of the BDC reticles used in each scope.
 
Re: Which ACOG for LR w/223

I played with the TA11 on a 16" carbine trying to get a close match. With 55gr ball @ 3150 I got a very close match out to 500 yards with the TA11 BDC donut. The accracy of the rifle/load couldnt confirm past 500 yards, but it was close.

The M193 load is 3250 out of a 20" barrel, 3150 out of a 16" barrel, respectively.

Kirk R
 
Re: Which ACOG for LR w/223

How about the NSN. works great out to 600yrds on mine.
This also has a WOA bbl on it.

For the Acog this model is probly the cheapest Acog model type if your going to get the 4x.


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