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 223 bullet for 1:9 twist
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wildhog6
Junior Member

48 Posts

Posted - Jan 09 2010 :  21:59:36  Show Profile Send wildhog6 a Private Message  Reply with Quote
Got a new Remington A15 223, 22"bbl, 1:9 twist. Exploring different threads, it seems to me the 1:9 twist is more accurate with 62-68 gr bullets. The 1:7 twist is better suited for 55 gr bullets. Anyone know this to be true or is it a matter of powder and primer for 55 gr bullets with a 1:9 twist bbl. I had a friend who no longer reloads give me 500 55 gr bullets. I'd like to use them for cyotes.

Bobo7mmmag
Advanced Member

2612 Posts

Posted - Jan 09 2010 :  23:19:02  Show Profile Send Bobo7mmmag a Private Message  Reply with Quote
Wild Hog 6

Good news, load em up. They should shoot good. Best I can remember on twist rates:

1:12 up to 60 grain bullets
1:9 " " 69
1:8 " " 75
1:7 " " 80

the longer bullets need a quicker twist.

Keep us posted on your load progress,

Bobo 7mm Mag


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determined451
Advanced Member

973 Posts

Posted - Jan 16 2010 :  08:21:03  Show Profile  Click to see determined451's MSN Messenger address  Send determined451 a Yahoo! Message Send determined451 a Private Message  Reply with Quote
+ 1 on Bobo...a 1:7 is better for the heavier bullets.

I would be curious to know what you finish up with...I am working with a Colt H-Bar with a 1:9 twist..am experimenting with the 69 gr. SMK..Most H-bars seem to have had a 1:7...

keep us posted on this, and I will be glad to share what I see as well..D-451

The Second Amendment.. America's Original Homeland Security
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aj3156
Senior Member



USA
480 Posts

Posted - Jan 20 2010 :  12:01:00  Show Profile Send aj3156 a Private Message  Reply with Quote
My 55gr AR-15 coyote load is:
55gr NBT
LC brass
Winchester srp
24.5 gr Ramshot X-Terminator.
Load to mag lenth 2.260
Shoots sub moa 20" 1:8 national match barrel.
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RedRussell
Starting Member



USA
9 Posts

Posted - Mar 15 2010 :  01:00:07  Show Profile Send RedRussell a Private Message  Reply with Quote
quote:
Originally posted by wildhog6

Got a new Remington A15 223, 22"bbl, 1:9 twist. Exploring different threads, it seems to me the 1:9 twist is more accurate with 62-68 gr bullets. The 1:7 twist is better suited for 55 gr bullets. Anyone know this to be true or is it a matter of powder and primer for 55 gr bullets with a 1:9 twist bbl. I had a friend who no longer reloads give me 500 55 gr bullets. I'd like to use them for cyotes.



I have a 16" 1/9 twist AR so my loads are no good for you but I found a load that work Great in my uncles gun. A 22" bullbarreled AR 1/9 twist. It is 55 grn Armscor FMJBT with 26 grns Varget and winchester primers. @200 yards he was less than 1/2 inch with 5 shot groups. They did begin to drift a bit in the breeze at 350 but was still doing 4" groups. I use the same load but I use a 63 grn FMJBT and I produce almost the same results.

USPSA & 3 Gun shooter
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coyoteklr
Advanced Member



USA
802 Posts

Posted - Apr 05 2010 :  15:21:59  Show Profile Send coyoteklr a Private Message  Reply with Quote
i shoot 55 grain nosler bt ahead of 24.5 grains of ramshot TAC which is slower burning than ramshot x-terminator... I started showing pressure signs with 26 grains of TAC.... 24" ar bushmaster 1 in 8 twist...less than .5 moa lc brass col 2.267

The first taste of Texas still lingers in my heart and on my tongue.

FASTER HORSES


Edited by - coyoteklr on Apr 05 2010 15:27:07
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ForneyRider
New Member

USA
36 Posts

Posted - May 25 2010 :  17:25:22  Show Profile Send ForneyRider a Private Message  Reply with Quote
I shoot 1:9tw AR 40-75gr bullets about 1/2MOA. The 36gr Barnes VG are about .7in at 100 yards. These are all 5 shot groups.

When all is said and done, there is a lot more said than done.
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ForneyRider
New Member

USA
36 Posts

Posted - May 31 2010 :  12:11:17  Show Profile Send ForneyRider a Private Message  Reply with Quote
I started researching 77gr bullets. I see several posts of shooters using the 77gr in their 1:9 AR for high power matches with success. Sierra SMK, Nosler CC and Lapua Scenar make 77gr. Berger might as well. They can be loaded to magazine length.

When all is said and done, there is a lot more said than done.
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mhiltz
Advanced Member

USA
645 Posts

Posted - Aug 08 2010 :  02:05:12  Show Profile Send mhiltz a Private Message  Reply with Quote
Thought I would say my peice on this. I load 55gr VMAX, 55gr. NBT and 55 gr. Sierras for my 1:9 twist AR. I use 25.5gr of Varget, and a Leupold Mark AR scope. That is the most accurate gun/round that I have. I put 8oz. Coke bottles up at 534 yds. (that is the maximum range at my personal shooting range) and I don't just aim at the bottle, but at the bar code. I hit the bottles 80% of the time, and out of that 80%, I hit the acctual bar codes maybe 10% of the time. Still for a 223 out of a 16"bbl, I think that is awsome. There won't be much hope for a prairie dog sized target at that range!

mhiltz

"It's better to have it and not need it than to need it and not have it" Captain Call Texas Ranger


Edited by - mhiltz on Aug 08 2010 02:13:09
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lightman
Advanced Member

1138 Posts

Posted - Aug 16 2010 :  20:19:59  Show Profile Send lightman a Private Message  Reply with Quote
I have a Remington PSS,M-700 with a 1-9 twist,26 inch barrel.It shoots everything from 40-45 gr to 69gr very well.I use it for prairie dogs,so have not tried anything heavier.Most every powder I have tried works well,too. Lightman
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ig25
New Member



USA
18 Posts

Posted - Feb 02 2011 :  20:49:05  Show Profile Send ig25 a Private Message  Reply with Quote

223 super preformance hornady 320 yards 10mph wind of bags
lower group is the cheap wenchester dbl hp 42 grain 3600fps
dpms bull 20 1x9 twist both shot under 3/4" roups at 100yards.
factory gun
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ig25
New Member



USA
18 Posts

Posted - Feb 02 2011 :  20:51:10  Show Profile Send ig25 a Private Message  Reply with Quote
sorry picture is up side down
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pasky2112
Starting Member



USA
4 Posts

Posted - May 30 2012 :  13:52:15  Show Profile Send pasky2112 a Private Message  Reply with Quote
quote:
Originally posted by ForneyRider

I started researching 77gr bullets. I see several posts of shooters using the 77gr in their 1:9 AR for high power matches with success. Sierra SMK, Nosler CC and Lapua Scenar make 77gr. Berger might as well. They can be loaded to magazine length.



I'd like to hear more about this. I'm lucky enough to have a 600y range at my club and have been only shooting 69g SMK d/t my 1:9 20" bbl AR-15. I shoot the "waterline" across the X/10 ring BUT even a slight variable wind of ~5mph knocks me to the 8 and even 7 ring a 3/9 o'clock, respectively. Anyway, I bought 100 77g SMK #1477 and would like to see if someone has had consistent success with this 77g in a 1:9 bbl @ around 600y (no key-holing, decent grps, decreased horizontal spread, etc.) and, if so, any load info to share?... a lot to ask, maybe but ask I am. ;)

Thanks all!
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603Country
Starting Member

USA
8 Posts

Posted - Jul 06 2012 :  14:48:15  Show Profile Send 603Country a Private Message  Reply with Quote
My Ruger Hawkeye in 223 (1 in 9 twist) shoots the 65 gr Sierra Gamekings into 1/2 inch or so (using AA2230 and a near max load). And recently I've found that the 40 gr Nosler BT shoots great over H335 at 1 grain under max (Lyman 49th suggested max).
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pasky2112
Starting Member



USA
4 Posts

Posted - Jul 06 2012 :  20:31:29  Show Profile Send pasky2112 a Private Message  Reply with Quote
quote:
Originally posted by 603Country

My Ruger Hawkeye in 223 (1 in 9 twist) shoots the 65 gr Sierra Gamekings into 1/2 inch or so (using AA2230 and a near max load). And recently I've found that the 40 gr Nosler BT shoots great over H335 at 1 grain under max (Lyman 49th suggested max).



I like AA2230 w/ the 65g SGK. I'm looking to test the envelope of the "you can't use a 1:9 bbl with 77g's" dogma.
I can just go test it but I only bought 100 77g SMK's and I'd like to hear if anyone has had success spinning these rnds out long distances around 500-600yds. I'm trying to avoid buying a .308 to shoot HP FT-R (service rifle rounds) matches.

David
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603Country
Starting Member

USA
8 Posts

Posted - Sep 09 2012 :  20:07:12  Show Profile Send 603Country a Private Message  Reply with Quote
I think that you're just going to have to try them out. From what I read, some rifles will stabilize them and some won't. Personally, I've never tried that bullet.
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