User Panel
User Panel
User Panel
|
Posted: 4/6/2015 5:55:43 PM EDT
[#1]
Longer barrel helps, but I went with the 9" because I wanted my sbr to be as small as possible. The 9 inch upper is pretty cool.
|
|
|
|
Posted: 4/6/2015 6:15:34 PM EDT
[#2]
I'm using an 8" for maneuverability...
|
|
|
|
Posted: 4/6/2015 6:48:34 PM EDT
[#3]
Mine is 10.5. The powder is all burned by 8" so you might as well go small. My 10.5 vs my 14.5 is very similar soundwise.
|
|
|
|
Posted: 4/6/2015 6:50:00 PM EDT
[#4]
The round was originally designed for 9" barrel, but most companies make smaller. That can is fairly long, so I personally would go with an 8" or 8.5", 1/7 twist to stabilize sub's.
|
|
|
|
Posted: 4/6/2015 7:05:35 PM EDT
[#5]
Quote HistoryQuoted:
Mine is 10.5. The powder is all burned by 8" so you might as well go small. My 10.5 vs my 14.5 is very similar soundwise. What powder and bullet are you using? Thanks Mike |
|
|
|
Posted: 4/6/2015 8:46:29 PM EDT
[#6]
I have a pair of 8s, 10.5 and a 14.5 and I can't tell the difference between any of them sound wise. Go short especially cause that AAC SD is long.
|
|
|
|
Posted: 4/6/2015 10:52:01 PM EDT
[#7]
I went 10.5 to fit nicely with my 9.5" geissele mk4 rail, balances and handles great with my saker
|
|
|
|
Posted: 4/6/2015 10:59:39 PM EDT
[#8]
I went 8", super quiet with subs, slays deer with supers.
|
|
|
|
Posted: 4/6/2015 11:09:20 PM EDT
[#9]
My 8.5" is accurate and a shorter barrel will assure the subsonic rounds that might be close to supersonic will remain below the speed of sound.
|
|
|
|
Posted: 4/7/2015 12:42:16 AM EDT
[#10]
You gain a bit of velocity with a 10.5" barrel over an 8". If I did mine again I might go with a 10.5". Maybe not though, I might get it together and decide to go back shorter.
It's not like 5.56 though where a few inches is a huge difference. |
|
|
|
Posted: 4/7/2015 1:31:48 AM EDT
[#11]
Quote HistoryQuoted:
What powder and bullet are you using? Thanks Mike Quote HistoryQuoted:
Quoted:
Mine is 10.5. The powder is all burned by 8" so you might as well go small. My 10.5 vs my 14.5 is very similar soundwise. What powder and bullet are you using? Thanks Mike Supers I use: Barnes tactx 110 Hornady/Nosler 125 Speer 110 varminter They are all close to 19 gr h110 but with some variation. Subs: 208 amax 220 SMK Fat_Mcnasty Magic bullets I used to use IMR 4227 but recently found a bunch of aa1680. Around 10gr. All lake city converted brass and CCI 41 primers. |
|
|
|
Posted: 4/7/2015 7:26:41 AM EDT
[#12]
I'm with Dash. I have a 10.5" and shoot 220 subs with 1680. It wears a YHM Phantom under a 12" BAR rail. Soon to have a 6" Ti homemade once approved.
|
|
|
|
Posted: 4/7/2015 1:05:03 PM EDT
[#13]
The longer the barrel the better for suppression, but between an 8" and a 10.5" I couldn't tell a difference in sound signature given the same ammo and can. I say go short.
|
|
|
|
Posted: 4/7/2015 1:44:42 PM EDT
[#14]
8.5 all day, this is my 8.5" SBR Suppressed with a YHM Phantom so I can shoot Subs or Supers. My trusty 300blk Handi Rifle to compare.
|
|
|
|
Posted: 4/7/2015 4:48:15 PM EDT
[#15]
8.2 here... As others have suggested, go short.
|
|
|
|
Posted: 4/7/2015 5:22:32 PM EDT
[#16]
My 8.0 sounds better than my 10.5 with subs. Here is a vid of 8 inch
https://m.youtube.com/watch?v=N_Fj32YAgd0 |
|
|
|
Posted: 4/7/2015 7:08:37 PM EDT
[#17]
My 8.2"....
My 6.5"...  
|
|
|
|
Posted: 4/8/2015 10:43:10 AM EDT
[#18]
8"-9". I may have to give the 6.25" a try on my MCX though.
|
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
