Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
5/21/2016 1:37:41 AM EDT
Regarding 300 blk short barrel AR's

For guys who do or have used adjustable gas blocks, how many degrees would you say you are turning the adjustment screw to go between super and subsonic?

Is it typically an 1/8 turn? 1/4? 1/2? More?

If you could, include what gas block you are referencing

Thanks


(No, I'm not going to try to use this info to adjust a gas block.
Just trying to get a ball park idea across the board )
5/21/2016 6:27:09 AM EDT
[#1]
My SLR gas blocks adjust at 3 clicks per full revolution.

If I recall, shooting subsonic and supersonic doesn't have a huge difference in bolt velocity. At least, not enough to adjust the gas block for lower recoil.  

It comes in handy for suppressed/unsuppressed.
5/21/2016 9:23:16 AM EDT
[#2]
Quote History
Quoted:
My SLR gas blocks adjust at 3 clicks per full revolution.

If I recall, shooting subsonic and supersonic doesn't have a huge difference in bolt velocity. At least, not enough to adjust the gas block for lower recoil.  

It comes in handy for suppressed/unsuppressed.
View Quote


How much are you typically adjusting to go between suppressed and in suppressed?

Also Sub and super?

Want to know if there's a block that takes less than about 45 degrees rotation
5/21/2016 11:23:49 AM EDT
[#3]
For me, with both an SLR and Syrac it is two clicks between suppressed and unsuppressed to get the brass landing in the same spot. That's for both 300BLK and 556. Not a big difference.






How much rotation is that? About a quarter turn. (Updated: SLR is 1/3 turn per click, Syrac is 1/4 turn per click)






-Stooxie


 
5/21/2016 3:52:15 PM EDT
[#4]
Quote History
Quoted:
For me, with both an SLR and Syrac it is two clicks between suppressed and unsuppressed to get the brass landing in the same spot. That's for both 300BLK and 556. Not a big difference.

How much rotation is that? About a quarter turn.

-Stooxie  
View Quote


Thanks

That's what I was hoping to hear
5/21/2016 4:05:13 PM EDT
[#5]
I am positive about the two clicks but Joshv06 might be right on the rotation. I'll have to check, two clicks might be closer to half a turn  (he said two thirds, could be).



-Stooxie
5/21/2016 5:14:31 PM EDT
[#6]
Quote History
Quoted:
I am positive about the two clicks but Joshv06 might be right on the rotation. I'll have to check, two clicks might be closer to half a turn  (he said two thirds, could be).

-Stooxie
View Quote


I appreciate it

Thanks
5/21/2016 6:32:24 PM EDT
[#7]
Ok, just checked both a Syrac (gen 4) and SLR 7. Josh is correct, 1/3 of a turn per click on the SLR. The Syrac was 1/4 turn per click.



-Stooxie
5/21/2016 7:13:34 PM EDT
[#8]
Seekins, adjusted for 123 gr supers, unsupressed, no change for suppressed.  Oh,  8 inch.
5/22/2016 12:18:24 PM EDT
[#9]
Quote History
Quoted:
Ok, just checked both a Syrac (gen 4) and SLR 7. Josh is correct, 1/3 of a turn per click on the SLR. The Syrac was 1/4 turn per click.

-Stooxie
View Quote


Thanks

I was hoping for a little less rotation but the syrac might work
AR Sponsor