Best twist rate for AR?

[Jasonaspears]

I purchased 3 lowers just for this reason!

[FNH5-7]

This is what I've been told. And go by.

1:7 for dropping body's
1:8 for custom rifles/groups sizes
1:9 for plinking/lower end rifles

Yup.

1:7 for the heavier 5.56ammunition
1:9 for the cheap .223 stuff
1:8 for a combo of both

[Twoodland]

I purchased 3 lowers just for this reason!

Lowers?

[Jasonaspears]

Is "lowers" incorrect? Would 3 "Lower Receivers" be better?

[Brown Rock]

Lowers?

[FuzzyBrows]

Is "lowers" incorrect? Would 3 "Lower Receivers" be better?

im guessing 3 seperate lowers to make 3 ar's for each twist. 1:7,1:8, and 1:9... why? i dunno, i personally think if your gonna get a barrel for anything, its either go with A, B, or option C for the compromise of the two. but getting all three is silly. My CMMG upper is in 1:7 because eventually i plan on handloading my .45 for cost and 5.56 for distance. but thats just me.

[Anchors]

Depends on the bullet weight you plan to shoot.

But for the record, I have a 1/7 twist barrel and have shot a bunch of 55gr .223 out of it without any issues.
So as long as you aren't shooting for match accuracy, go with whatever.

That being said you can get a nice 1/7 twist upper for the same price as some of the other "cheaper" 1/9 uppers.

[pullnshoot25]

I just got a 1:22/7 twist rate barrel and I gotta say, it runs circles around all the other stuff out there.

Giggity.

[Raptor1Ronin]

1/9 will do it all..

[CK_32]

Ok so I've been watching this and have been kinda surprised at the answers.. I have asked this a few months back on 3 different forums even this one and was heavily told to go with the 1:7... Now I'm seeing once someone says one thing a ton of people agree not to have an argument and chance looking dumb or have one so assume it's best to recommend it to others..

Read this and then take in what you think is best..

http://mscg.yuku.com/topic/1409/AR15-barrel-twist-rates-which-is-best?page=1

On 3 different forums snipershide.. Calguns and the firing like I was heavily suggested to shoot 1:7 for my HD/target shooting needs.


I went with a 1:7 and shoot 55gr bullets and have no problems.. And the Article above will explain exactly why 1:7 is a more popular over the others..

In all most AR companies use 1:9 for some reason but it's usually found on the base model companies.. Long time more pricey ARs always seem to use 1:7 twist and I think there is probably a reason for it..

1:8 is never seen because that's usually match grade custom barrels and those cost a good amount.. I'm not saying 1:7 destroys all but ask on a few other forums and see what other answers you get..


Sometimes the band wagon jumpers do come along and try to agree to get post count up and only agree with the high post count guys.. Reason I hate showing post count on forums.. Just because someone talks a lot does t mean they know the most about what they are talking about but I have seen it time and time again..

But yes 1:9 will do you fine.. Unless you are looking at maybe a back up HD/SHTF rifle.. Then 1:7 is your man.. There is a reason they (Military) use 1:7 for the ammo that they use..

Because their job is to kill people when needed.. Civilians don't need that duty on a daily reason why 1:9 works just fine for so many people.. It will hurt or kill someone but those heavier grain bullets will make a huge difference with their fragmentation

But I chose 1:7 because if I ever have to use my rifle in a life or death.. I'd really wanna be confident in my AR to put him down because I know my rifle/bullet choice was made for that purpose..


EDIT: Spelling errors.. Oopsy I should really stop replying on my stupid Iphone and just wait till I get home.

[CK_32]

And if I step on a few toes with that post. Oh well it's a forum.. Its just an opinion just like every other post on here.

I may be wrong I may be right but again it is my opinion from the research and facts I have obtained my self.. May it be wrong or right.

[XDRoX]

Ok so I've been watching this and have been kinda surprised at the answers.. I have asked this a few months back on 3 different forums even this one and was heavily told to go with the 1:7... Now I'm seeing once someone says one thing a ton of people agree not to have an argument and chance looking dumb or have one so assume it's best to recommend it to others..

Read this and then take in what you think is best..

http://mscg.yuku.com/topic/1409/AR15-barrel-twist-rates-which-is-best?page=1

On 3 different forums snipershide.. Calguns and the firing like I was heavily suggested to shoot 1:7 for my HD/target shooting needs.


I went with a 1:7 and shoot 55gr bullets and have no problems.. And the Article above will explain exactly why 1:7 is a more popular over the others..

In all most AR companies use 1:9 for some reason but it's usually found on the base model companies.. Long time more pricy ars always seem to use 1:7 twist and I think there is probably a reason for it..

1:8 is never seen because that's usually match grade custom barrels and those cost a good amount.. I'm not saying 1:7 destroys all but ask on a few other forums and see what other answers you get..


Sometimes the band wagon jumpers do come along and try to agree to get post count up and only agree with the high post count guys.. Reason I have showing post count on forums.. Just because someone talks a lot does t mean they know the most about what they are talking about but I have seen it time and time again..

But yes 1:9 will do you fine.. Unless you are looking at maybe a back up HD/SHTF rifle.. Then 1:7 is your man.. There is a reason they use 1:7 for the ammo that they use..

Because their job is to kill people when needed.. Civilians don't need that duty on a daily reason why 1:9 works just fine for so many people.. It will hurt or kill someone but those heavier grain bullets will make a huge difference with their fragmentation

But I chose 1:7 because if I ever have to use my rifle in a life or death.. I'd really wanna be confadNt in my AR to put him down because I know my rifle/bullet choice was made for that purpose..

It's funny how sometimes these threads can gain momentum in one direction or another.

Let's switch the tide

I choose 1:7 as well and I shoot 55gr homemade rounds exclusively.

[pyro3k2]

This is what I've been told. And go by.

1:7 for dropping body's
1:8 for custom rifles/groups sizes
1:9 for plinking/varmint shooting/bench AR's

Fixed it for you

[Unicorn food]

But I chose 1:7 because if I ever have to use my rifle in a life or death.. I'd really wanna be confadNt in my AR to put him down because I know my rifle/bullet choice was made for that purpose..

Thats why I shoot an LMT with a 1:7

[Hoop]

This is what I've been told. And go by.

1:7 for dropping body's
1:8 for custom rifles/groups sizes
1:9 for plinking/lower end rifles

Um, not exactly. The short, short version is that the longer the bullet you have, the more twist you need. Now, if you have a longer barrel you may or may not get away with less twist, and if you have a shorter barrel you may or may not need more twist to stabilize the same bullet. You choose your twist rate according to the bullet you want to shoot. That's it.