AR Question(s)?

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Thread: AR Question(s)?

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    Senior Member Array CowboyColby's Avatar
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    AR Question(s)?

    Well Christmas came early this year and I recieved a gift from our "fine" government and plan on purchasing an AR. I have looked around and read every thread on here about them and checked with what my local dealer has to offer and prices and so forth. I have decided on a RRA Chrome barreled AR. My problem comes to what scope to put on it. I was looking at an EOTECH that i thought was really cool but they are pretty pricey and I'm worried about it because it requires a battery. Would I be better off to get a regular 4x scope or something simlar that is less likely to malfunction. My primary use will be for coyotes and prarie dogs but I would also like to kind of trick this baby out a little so any suggestions on cool toys to put on it are appreciated. Also what is the difference between 1:7 and 1:10 I couldn't find the suggested 1:7 and the guys I talked to said I wouldn't be able to tell the difference anyways, Thoughts?

    P.S. I will attempt to post pics this weekend.

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    VIP Member Array dukalmighty's Avatar
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    Eotechs don't burn up batteries that fast,Mine takes N batteries,but they also make AA size,I turn it on when I'm shooting and turn it off when I'm done,I've had batteries last over 6 months
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    VIP Member Array edr9x23super's Avatar
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    the 1:7 and 1: 10 you describe is the barrel twist; the larger (1:10) twist will stabilize heavier bullets better. A lot of the target/camp perry crowd favors 68grain loads with the slower twist at longer ranges; for 95% of your applications, a 1:7 or 1:9 twist should be just fine for the 45-60 grain loads you find out there....
    "Guard with jealous attention the public liberty. Suspect everyone who approaches that jewel. Unfortunately, nothing will preserve it but downright force. Whenever you give up that force, you are inevitably ruined". - Patrick Henry

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    The red dot and holographic sights are more suited to defensive and anti-personnel uses. The EOTech has a 65 MOA outer ring and a 4 MOA dot in the center which are great for getting shots on a man-sized target out to 200 yards or so. The Aimpoints typically have 4 MOA dots but I think you can get 2 MOA as well.

    The Aimpoints are superior to the EOTech with respect to reliability and battery life. EOTechs have had some notorious problems (mostly with battery contacts) in the sandbox. Aimpoints have had the edge from the beginning and apparently have retained it.

    I've had an EOTech for 3 years and have had batteries die on me once. Now I just change 'em every 6 months or so. Aimpoints - you don't turn 'em off, you just crank the dot power down and change the batteries about every 3 years.

    For hunting purposes, I think you'd be better off with a scope, and it'll probably be a lower investment, as well.

    Rifling twist: 1/9 and 1/7 are the common ones these days. The heavier bullets (it's actually a bullet length consideration, but the heavier bullets are generally longer) need the faster twist rate for stabilization, but the 55- and 62-grain bullets are fine with either twist, for all practical purposes. You'll notice a difference when you get into the 65-80 grain bullet weights.
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    Quote Originally Posted by edr9x23super View Post
    the 1:7 and 1: 10 you describe is the barrel twist; the larger (1:10) twist will stabilize heavier bullets better. A lot of the target/camp perry crowd favors 68grain loads with the slower twist at longer ranges; for 95% of your applications, a 1:7 or 1:9 twist should be just fine for the 45-60 grain loads you find out there....
    Methinks you have this backwards...

    http://le.atk.com/pdf/223_MinimumTwistRates.pdf
    Smitty
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    Senior Member Array CowboyColby's Avatar
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    Thank you guys I'll try to post pics of what I get this evening. Have a great weekend. I know I will ;)

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    I, for one, am a big fan of the EOTech. I've carried one for more than three years in Afghanistan and Iraq, as both an infantryman and a protective operations specialist, and never had one fail, break, or run out of batteries. Several members of my platoon/team used them as well, without any problems. I don't dismiss the reports from others, it just wasn't my experience.

    You can put a magnifier on a "tip off" mount behind the EOTech, and you have what is, IMO, the most versatile AR optics set up. Of course, you can do the same thing with an Aimpoint (or similar), but I much prefer the flat viewing plane and extremely quick target acquisition that I get with the EOTech.

    Of course, you are now looking at some relatively serious cash for your set up, so.... I also like the Leupold VX 1 in 2-7x. It's not as fast at close ranges, but at 2x it's not bad, and at 7x you've got plenty of magnifications for those 200m coyote shots. You can get one of these for under $200.

    Good luck in your search, and enjoy the AR!
    A man fires a rifle for many years, and he goes to war. And afterward he turns the rifle in at the armory, and he believes he's finished with the rifle. But no matter what else he might do with his hands - love a woman, build a house, change his son's diaper - his hands remember the rifle.

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    Senior Member Array CowboyColby's Avatar
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    Well after many hours in the dealers shop I came out with something I really like. I opted not to go with the EOTech and got a cheap BSA red dot scope and also a quick interchangeable Elite 10x40 milidot I can easily attach. I took her out tonight after checking cows and for just bore sighting it I took out the water bottle I placed against my backstop using the dims of my pickup. I'm really pleased and can't wait to add more to it as time passes. Pics on the way!!

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    Senior Member Array CowboyColby's Avatar
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    Cowboy's 1st AR


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    LUCKY!!!

    Congrats!! I know you have been shopping for a long time.
    I am glad you got to buy a gun for yourself this time...
    not that I am complaining since they are usually for me !!
    I declare to you that woman must not depend upon the protection of man,
    but must be taught to protect herself, and there I take my stand." --Susan B. Anthony

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    Member Array Shotdown's Avatar
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    Quote Originally Posted by edr9x23super View Post
    the 1:7 and 1: 10 you describe is the barrel twist; the larger (1:10) twist will stabilize heavier bullets better. A lot of the target/camp perry crowd favors 68grain loads with the slower twist at longer ranges; for 95% of your applications, a 1:7 or 1:9 twist should be just fine for the 45-60 grain loads you find out there....
    Quote Originally Posted by gasmitty View Post
    Methinks you have this backwards...

    http://le.atk.com/pdf/223_MinimumTwistRates.pdf
    Yes, 1/7 stabilizes the heavier rounds. I would not go less than 1/9. My .02 cents.

    Also, I'm an Aimpoint fan. I like leaving my optic on for a few years and it holds zero very well. If you want a variable scope, look into a Weaver, Millet or if you really want a nice one, get a Meopta K-Dot.

    G19, G23, P2000 (9mm), LMT Defender 2000 (SOPMOD), Colt LE6920, Ruger 10/22

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