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View Full Version : 20" or 24" Which one?


DJMAN
08-27-2006, 6:53 PM
My next build is a 20" or 24". Help me decide. Thanks everyone.:D

blkA4alb
08-27-2006, 6:55 PM
I went with a 20" and I'm glad I did. My gun is heavy enough as it is, another 4" of barrel will add a lot of weight.

C.G.
08-27-2006, 7:36 PM
What is the intended use?

tenpercentfirearms
08-27-2006, 7:51 PM
20". The 24"ers are beasts.

NRAhighpowershooter
08-27-2006, 7:52 PM
get a 26" instead!!!!!
http://www.imagestation.com/picture/sraid209/p0c25afda309d0e52470e01a385996c56/ee068e4c.jpg

Pthfndr
08-27-2006, 8:00 PM
get a 26" instead!!!!!
http://www.imagestation.com/picture/sraid209/p0c25afda309d0e52470e01a385996c56/ee068e4c.jpg

You just want an AR that weighs as much as a Garand ;)

phish
08-27-2006, 8:01 PM
^ x 2 : cheater! :p

EvolutionGSR
08-27-2006, 8:01 PM
Girth is more important than length. So get a 20" bull barrel.


Lol j/k but it sounded funny. I'm sure some of you will argue length of a barrel will have more affect on accuracy.

blkA4alb
08-27-2006, 8:03 PM
Girth is more important than length. So get a 20" bull barrel.
Exactily what I have, and I think you would be hard pressed to find a 24" pencil barrel :rolleyes: :D .

thmpr
08-27-2006, 8:10 PM
Rule of thumb.... The longer the barrel the higher the velocity. If you are using the barrel for long range: >600 yards, go with a 24"-26" 1-7 twist.

DJMAN
08-27-2006, 8:38 PM
I think I'll get 20" bull. Thanks for the input. Placing order monday morning.:D

capitol
08-27-2006, 9:19 PM
I think I'll get 20" bull. Thanks for the input. Placing order monday morning.:D
Whatcha buying tell us more :)

NRAhighpowershooter
08-27-2006, 9:20 PM
You just want an AR that weighs as much as a Garand

Actually with the 3.5lb buttstock weight.. the rifle weighs in at 12.5lbs

James R.
08-27-2006, 9:39 PM
Rule of thumb.... The longer the barrel the higher the velocity. If you are using the barrel for long range: >600 yards, go with a 24"-26" 1-7 twist.

In the same breath the harmonics of the longer barrel are harder to tame and those can cause your shot to shot placement to move around on ya. There is a trade off between short, stiff and slower AND long, wobbly and faster.

Only real gain with the longer barrel for target purposes is that you spend less time in flight under the influence of the wind. Other than that it's all negatives as far as I'm concerned.

My vote for the AR is to go with the 20" for a target gun...if it's a varmint rifle and you want to engage small varmints over a wider range of unknown distances the added velocity and flatter trajectory you'll get with the longer barrel would probably be worth having.

Regards,

James R.

DJMAN
08-27-2006, 9:41 PM
Thinking about a model 1 varmint 20" w/harris bipod stainless fluted. (Easy with the comments boys. and ladies.:eek: )

DJMAN
08-27-2006, 9:42 PM
Thanks for the info James.:)

blkA4alb
08-27-2006, 9:44 PM
Thinking about a model 1 varmint 20" w/harris bipod stainless fluted. (Easy with the comments boys. and ladies.:eek: )
Thats what I have minus the fluting. I have shot it sub-MOA, you won't be dissapointed.

thmpr
08-27-2006, 9:59 PM
In the same breath the harmonics of the longer barrel are harder to tame and those can cause your shot to shot placement to move around on ya. There is a trade off between short, stiff and slower AND long, wobbly and faster.

Only real gain with the longer barrel for target purposes is that you spend less time in flight under the influence of the wind. Other than that it's all negatives as far as I'm concerned.

My vote for the AR is to go with the 20" for a target gun...if it's a varmint rifle and you want to engage small varmints over a wider range of unknown distances the added velocity and flatter trajectory you'll get with the longer barrel would probably be worth having.

Regards,

James R.


I agree for <600 to go with the 20" rifle. My post was to clarify just that. If DJ wanted to shoot long range >600 yards, I would go longer than a 20"
barrel. The only AR-15 I know of that was meant for 1000 yards was made by DL and the only rifle that won the 20/20/20 challenge: 26" barrel.