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reloading for an ar 15 223

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  #1  
Unread 11-13-2008, 09:43 AM
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reloading for an ar 15 223

Just wondering if there is any thing different to load for an automatic rifle compared to a bolt action. Would I need to use a factory crimp die to keep the bullets in the necks or am I just thinking to much into it. What all would I need, and what powders would work for this. Oldfamily.
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  •   #2  
    Unread 11-13-2008, 06:53 PM
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    Re: reloading for an ar 15 223

    I have one and it drives tacks.
    H335 24.4 grains and 60 varmint from seirra. 1/2 moa
    i know 3 other ar's that like this load also 3016 ft per min.
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      #3  
    Unread 11-14-2008, 04:49 AM
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    Re: reloading for an ar 15 223

    There are certain powders that are better suited to "gas guns" like the AR.

    The good news is there are plenty of them...its not a short list.

    I use Reloder 15 in my AR loads.

    Its best to crimp the bullets...some people refuse to do it, but I know from experience that an AR 15 beats the heck out of a round during feeding, just look at the ejected brass...besides the dent on the shoulder from bouncing off the deflector, it will be nicked and dinged in several other places 90% of the time. The feedramps "deflect" the round (sorta), which is a good place to get bullet setback with loads that are not crimped.

    Opinions vary greatly on load data... I have some recipes for 5.56 NATO spec ammo (way too hot for a 223 Remington chamber)

    I also have some decent varmint loads, all of which use Reloder 15 except 1 (that one uses AA 2230)
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      #4  
    Unread 11-14-2008, 01:46 PM
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    Re: reloading for an ar 15 223

    I shoot 55gr. noslers over 25grs. of reloader 15. I don't used a crimp and I have had no problems. Some books say to stay away from match primers beacause they are a little softer and the floating firing pin might cause a round to go off before the bolt is locked. other then that is there is nothing really different than a bolt gun.
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      #5  
    Unread 11-15-2008, 09:26 AM
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    Re: reloading for an ar 15 223

    there are a couple of things that I do different when reloading for an AR-15, first is that I run more neck tension than for a bolt action but I dont crimp (or use cannalured bullets).
    On a bolt action I never full length size my cases unless they need it, on an AR15 they need to be full length sized every time. set-up your FL dies so that you are setting back the shoulder about .001" this will also slightly size the body and web area.(AR's require a slightly looser chamber-cartridge fit to ensure reliable operation).
    UB
    as for powders it depends on bullet weight, what bullets are you planning on using?
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    Last edited by uncleB; 11-15-2008 at 09:31 AM.
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      #6  
    Unread 11-15-2008, 11:33 PM
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    Re: reloading for an ar 15 223

    I am planning on using 55 to 77 grain bullets. With the majority being the 69 grain smk. Rifle has a 1/8 twist.
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      #7  
    Unread 11-16-2008, 08:45 AM
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    Re: reloading for an ar 15 223

    Quote:
    Originally Posted by oldfamily View Post
    I am planning on using 55 to 77 grain bullets. With the majority being the 69 grain smk. Rifle has a 1/8 twist.
    My Ar is also a 1-8 twist with 24" barrel. And i do not crimp my bullets. I have 3 other friends that reload 223's and they do not crimp either. but i like i stated if you use a 60 varmint bullet from sierra. they are cheap 13.50 per 100 and with 24.4 grains of h335 we all get 1/2- 3/4 moa at 100 yards. that little 60 gr. will flat destroy a prairie dog. and very effective on coyotes as well. mine shoots average speed of 3016 ft per second my buddy has a 20" barrel and his runs about 2600ft.
    i have tried any heavier bullets. just been to satisfied with a really cheap load that works.
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