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barrel twist in AR style 223

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Unread 12-31-2010, 10:15 PM
Platinum Member
Join Date: Oct 2009
Location: Thunder Basin, WY
Posts: 1,788
Re: barrel twist in AR style 223

For whatever it's worth, I've had 3 different Ar-15's over the years. One had a 1-7, the last two have 1-8. I still have the last two. I think maybe I could be using 1-9 quite easily, because my most recent one seems to like the 60 grain bullets. It doesn't seem to like the 55 grain stuff I've tried. 69's and 77's shoot decent, but best accuracy has been with 60's so far........especially with factory ammo. The 1-7 was only gauranteed accurate with 69 and heavier bullets.

I am thinking you'll want to use something in the 55-69 grain loadings (based on your 2nd post). I know that some Tactical ammo is available in 55 and 68-69 loadings from more than one manufacturer. A 1-8 or even 1-9 (as Kevin said) should theoretically shoot all those just fine. I've often wondered if I should have went with 1-9.

Of the 3 I've had, the best for mobility was the shortest one (18" heavy barrel).
I would consider 20" medium weight barrel to be max for quick mobility, especially if your talking about getting it into and out of a vehicle or the vehicle window fairly quickly.........These shorter barrels probably won't shoot the heavier bullets as efficiently as the lighter ones.

Just my 2 cents.
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Unread 01-01-2011, 02:48 AM
Gold Member
Join Date: Apr 2010
Location: NW Mt.
Posts: 599
Re: barrel twist in AR style 223

For LEO work you are still going to want to fire the glass penetrating rounds as well
as the frangible ones. I would look into the cartridges first , then the gun. RRA seems
to be following the market as well or better than anyone right now. What they are
offering in an LE design is probably close to the mark. Not that I am advocating their
product one way or the other.
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