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.223 1:9 Twist Rate
Posted: Fri Oct 29, 2010 12:22 pm
by lucam
Hi Everyone,
I'm pretty new to the centerfire game. I've got a few 30-30's plenty of shotguns, and rimfires.... but I'd like to start playing around with something more accurate and fun.
I'm considering a .223 bolt action model 700 with a 20 barrel.
I see that it has a 1:9 twist rate. What bullet weights can I expect to shoot accurately withthis sort of twist?
Posted: Fri Oct 29, 2010 5:48 pm
by Bullseye
I'm shooting the 62's to 80's with a high degree of accuracy through mine with the 1-9 barrel. My service rifle really likes the 77's for the short lines and the 80's for slow fire.
R,
Bullseye
Posted: Fri Oct 29, 2010 9:38 pm
by glockeyed
my savage hates 52gr stuff, likes 69gr stuff, and im about to try some 75gr stuff.
Posted: Sun Oct 31, 2010 6:26 pm
by Hakaman
I shoot a National Match RRA's 223 rifle 9" twist in a league (or try to anyway),
and I have found that the 69gr HPBT seems to be the most accurate. It's a Sierra Match style.
I also find the Hornady 75g Match HPBT shoots very well. With a scope, 4x14 power,
I can keep half inch MOA groups. I have tried 55gr bulk ammo without much success.
Maybe a match 55gr would be more accurate then the bulk.
Good luck,
Haka
Posted: Mon Nov 01, 2010 5:42 am
by Bullseye
I've had no luck with the lighter 55's through the 1-9 or 1-7 barrels. This is especially true for shooting reduced sized 600yd slow fires at 200 yards. The twist rate is just too fast for those little bullets. They will not stay inside the smaller target rings on the reduced target. The heavier bullets fly straight and true.
R,
Bullseye
Posted: Mon Nov 01, 2010 4:11 pm
by Hakaman
Not only have I experienced negative results with 55g thru 9" twist, everybody
I talk to seems to relate the same experience. If you want accuracy with a 9" twist barrel,
I like the range BE gave with 62 to 80g. Brass sorting and powder charge are very important, needless to say.
Haka
Posted: Tue Jan 11, 2011 5:38 pm
by xfyrfiter
And I thought it was just me
Went out Sunday and could not shoot 50 ,52,or55 gr with any consistancy. Thanks for the info. Learn something new every day.
Posted: Tue Jan 11, 2011 6:31 pm
by Medicine Hat
xfyrfiter wrote:And I thought it was just me
Went out Sunday and could not shoot 50 ,52,or55 gr with any consistancy. Thanks for the info. Learn something new every day.
Welcome aboard,
Stick around, there is lots to learn from the folks on here.
Posted: Tue Jan 11, 2011 7:22 pm
by Bullseye
Welcome to GunTalk-Online Xfyrfiter!
R,
Bullseye