Re: ACOG? Which one? Which rifle should I put it on?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: LWRC556</div><div class="ubbcode-body">
http://www.manventureoutpost.com/products/...}TA51-Mt.html
I want to learn precision shooting but dont want to learn all the crazy adjustments. How many yards can you shoot with an ACOG without adjusting for anything? What range difference is there between a 14.5 inch Colt M4, 16 inch Colt M4, and 20 inch M16? Will any make shooting distance alot easier?
Is the AR the best platform to put an ACOG on?
Which ACOG where combat tested and approved? Im guessing 4x is the magnification I should use. How much skill does it take to use an ACOG when compared to a traditional Leupold Mark 4 Tactical? Can I use the same ACOG on a 16 and 14.5 inch rifle? I am under the impression that these make 500-700 yard prescion shooting reachable for novice shooters?
How would you use one under 50 yards if you where in a fire fight? </div></div>
I am quoting this b/c you said a mouthful.
A) The BDC in the ACOG is load and barrel specific. The best advice is to call Trijicon and ask them exactly which load and which barrel length they used to come up with the BDC for the particular model that you are interested in. In general know that the BDC (regardless) is going to be close but not 100%. Compare and contrast FOV and eye relief and consider this when you purchase.
B) An ACOG can be used on any weapon which the BDC corresponds well with and provides an adequate means of mounting. I have used them on FALs as well and shot to 700 - kind of a joke with an FAL but - whatever.
C) As for the rest of it - it is not a miracle worker. It will flatten the learning curve a bit *if* you learn to understand MOAs and their relationship as the distance grows. Unlike a conventional 'scope' you (may) adjust, you will simply hold. Thus you need a very good understanding of the reticle and how to fractionalize it. The ladder bars are 19" wide - roughly shoulder to shoulder at the collar bone - this is how distance is calculated with an ACOG. You need to be able to make a wind call, figure the wind hold off in terms of MOAs, then be able to fractionalize the appropriate ladder for the distance that you are shooting. As an example (77s out of an 18" - 20") 600 yrds - 4 mph wind, 1/2 value = 1.29 MOA hold off. Your 600 yrd ladder is a total of 19.89 MOA - fractionalize that for the correct hold off.
D) Close in - you shoot with both eyes open. You will need to learn to scan and acquire targets with the non optic eye, swing to the target, and as you come on the target - transition to receiving optic inputs to your brain from the optically enhanced eye. As soon as the shot is made, transition back to receiving brain inputs from the non optic eye and continue to scan and acquire. My split times are about the same in close (3 - 30) with an ACOG as they are with an Aimpoint. At intermediate distances (35 - 100) it is actually harder to force myself to quickly transition back to the non optic eye. Learning to transition inputs to the brain quickly is the key to shooting these fast from 3 - 100.
I have shot an ACOG well with 77's out to 650 however I find a the MIL based reticle in a Short Dot much faster to fractionalize, although that is a failing on my part simply b/c there is less math involved and I am more comfortable with a MIL based reticle. I like the doughnut reticle b/c I think it is faster in close. It is a little harder to shoot well at 100 - 300 simply b/c you are using a circle as opposed to a point to aim with.
Learning to shoot irons first is a really good idea.
Good luck
