Recent content by KneverKnew

I understand the 3’-4’ for a 5.56 but does that same rule apply to 308?

Gee, I though getting it down to 6’-8’ from 10’-12’ was doing good. 😂 I will continue my adjustment tests.

Range results with the SFAR using Aero Precision AGB. I tested with Austrian 7.62 (STG-58.) I used a standard carbine spring and 3oz buffer. After adjusting Aero AGB I got 3:00-4:00 ejection pattern with 6'-8' ejection. I got pretty consistent lock back on empty depending on magazine used...

Thanks for your input Mobuck. My plans line up with your suggestion. Right now I am doing a deep dive cleaning of the SFAR to have a clean start, so to speak, to run the aero AGB through its paces. I hope to get to the range early this coming week.

I’ve installed an aero precision adjustable gas block on my 20” SFAR. now I’m wondering if I should tune it with the standard 3oz buffer that came with it or continue using the H3 or H3 buffer? Please share your thoughts.

I appreciate the help. For the time being I’m going to try a spare aero precision adjustable gas block I have on hand. Just need a rifle length gas tube which I just ordered. I hope this will resolve issues until I get rich enough to try the nicer options.

I have an Aero Precision adjustable gas block. I need to order a rifle length gas tube. Any idea if the SFAR will need a standard gas tube or a straight? Hoping someone else has done this already.

I agree. I think this is related to the problem of over gassing causing the system to try and unlock too soon/ bad timing. So…a new adjustable gas block hopefully will allow to slow things down.

Even with H3 the two ejectors are cause bright rub marks, and sometimes raising metal burs. An adjustable gas block may be necessary to prevent this. I’m Leary of too strong a spring or heavy a buffer for same reasons mentioned about excessive chambering speeds.

I’ve seen improvement with the H3 buffer but think I need to get a flat wound spring that is a bit stronger. Maybe then go down to H2 again. Any suggestions on source for spring and appropriate weight?

Today I’m loading up some 168 SMK’s to around 2600 fps. H3 buffer is installed. Will get to range today or tomorrow to test those along with the usual suspects.

I appreciate the info. Even if the Adam’s system won’t work on the SFAR I’m interested in using it on one of my AR-47’s. 👍

Will one of those piston systems fit the SFAR?

I agree with you. It’s a matter of overgassing causing to fast timing. Had similar issues with my 458 Socom. I’m sure the H3 should help. I’m thinking adding a flat wound spring might be necessary too but testing will tell. And why not use a silencer in a 308? 🤔 Yes, #1 setting is for cans.

I do have a suppressor to use so adjustable gas block is needed. If the H3 buffer, or possibly a stronger flat or braided spring doesn’t help the over gassing issue with ruger’s gas block I will try one of my Odin Works adjustables. I think that will do the trick. But I’d like to try and leave...