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Posted: 11/29/2018 1:44:58 PM EDT
[#1]
I've just read same stuff you've probably read. Finicky gas problems with no adjustable gas block. Read it can be remedied with round selection. Sounds like a plan to be limited on which rounds you can use.
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Posted: 11/29/2018 2:07:16 PM EDT
[#2]
Quote HistoryQuoted:
I've just read same stuff you've probably read. Finicky gas problems with no adjustable gas block. Read it can be remedied with round selection. Sounds like a plan to be limited on which rounds you can use. |
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Posted: 11/29/2018 2:50:18 PM EDT
[#3]
I put adjustable gas blocks on everything now, it makes for a much better shooter.
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Posted: 11/29/2018 6:32:36 PM EDT
[#4]
Shoot it, then adjust if needed. Built 3 different blackouts so far. All ran like a top using both carbine and pistol gas systems. If it ejects and locks back, you are set.
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Posted: 11/29/2018 8:52:27 PM EDT
[#5]
My 8.5 " barrel uses a pistol-length gas tube and a low profile gas block and I can shoot sub-sonics and supersonic ammo all day long with no problems.
It is the carbine length gas tubes that may cause the problems, I have had issues on my first carbine upper which is a CMMG bought several years ago when .300" Blackout first started getting popular. Its just a little finicky running subs with the suppressor on it so it may be a gas related issue and it isn't all the time which is very strange. My reloads for subs use A1680. |
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Posted: 11/29/2018 9:49:40 PM EDT
[#6]
My 8.5 " barrel uses a pistol-length gas tube and a low profile gas block and I can shoot sub-sonics and supersonic ammo all day long with no problems.
It is the carbine length gas tubes that may cause the problems, I have had issues on my first carbine upper which is a CMMG bought several years ago when .300" Blackout first started getting popular. Its just a little finicky running subs with the suppressor on it so it may be a gas related issue and it isn't all the time which is very strange. My reloads for subs use A1680. |
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Posted: 11/29/2018 10:00:15 PM EDT
[#7]
I've never had a problem with mine (8" barrel), I shoot mostly hand loaded subs with no cycling problems.
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Posted: 11/29/2018 10:02:58 PM EDT
[#8]
Quote HistoryQuoted:
My 8.5 " barrel uses a pistol-length gas tube and a low profile gas block and I can shoot sub-sonics and supersonic ammo all day long with no problems... 1" shorter might be a little more finicky but I can't imagine it will be too bad |
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Posted: 11/30/2018 1:32:49 AM EDT
[#9]
The only thing my 8" 300BO has had issue feeding is 220gr subsonic. I hope to remedy that with a suppressor in the nearish future.
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