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Newbie Question


Retired Mike

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8 hours ago, DNP said:

How long did it take to fully learn sketchenese?  I get most of it, but your ability to interpret is amazing. 

 

3 hours ago, sketch said:

It was 2013 or 12 I can't remember,  till last year.🍻🍻😁🖕🏻

There was lot's of study over the years, but the in-depth crash course, with one-on-one instruction and practice, was a couple years ago at the Fall Shoot.  That was invaluable training, right there, and really upped my proficiency level.  He was schmammered, as was I, so it made it much easier to pick up on all the little nuances...   :thumbup::lmao:

Two Drunk Guys GIFs | Tenor

Edited by 98Z5V
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51 minutes ago, 98Z5V said:

 

There was lot's of study over the years, but the in-depth crash course, with one-on-one instruction and practice, was a couple years ago at the Fall Shoot.  That was invaluable training, right there, and really upped my proficiency level.  He was schmammered, as was I, so it made it much easier to pick up on all the little nuances...   :thumbup::lmao:

Two Drunk Guys GIFs | Tenor

I can't be trusted alone. my shits is 2 deep!

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  • 2 weeks later...
On 1/10/2021 at 11:16 PM, 98Z5V said:

Sorry for the delay in getting back to you. I tool you advice and ordered a heavy buffer and spring from Heavy buffers. I apologize for not earlier making myself clear, but my primary interest is to make the rifle function with the suppressor as I'm not interested in hunting without it. This helps keep my neighbors happy and asleep.

While waiting for it, since I already had it, I installed the adjustable gas block and tried it out. I was unable to find a setting that would make it function properly as you predicted. The heavy buffer (8.5 oz as suggested by Clint) and spring came today and I immediately installed them and headed for my range. With the adjustable gas block still installed but set full open, the rifle functioned much better, but still had issues, just not as many. I shot 20 rounds and had three eject/feed issues plus one case of the bolt not locking back on an empty magazine. at other times I could shoot 4 rounds in rapid succession without issue. The attached videos are in slow motion but still look fast. If you go through them a frame at a time, you can getter see what is happening

I'm stymied and need help and would appreciate any suggestions. I suspect I should probably go back to the original gas block and see if that helps. Your thoughts?

Respectfully. Mike Hickman

@Retired Mike - we know what you need for a buffer, but lets address that spring as a next step, if necessary.  Get the new (correctly weighted H3, 5.4oz) buffer in there first, and run the gun.  If we have a spring issue, the quick, cheap fix is to just use an Armalite EA1095 spring.  That's their AR-10 recoil spring.  They run that same spring in their AR-10 Carbine Recoil System, AND in the AR-10 Rifle Recoil System - and it just works.  Every time.

You'll have an extension is 8.000" internal with a buffer of 3.250" moving inside it.  That's 4.750" of movement inside the extension, that the spring must control. 

AR-10 Carbine is 7 5/8" internal (7.625") with a 3.250" buffer = 4.375" of movement/spring control.

AR-10 Rifle is 9 11/16" internal (9.688") with a 5.200 AR-10 Rifle Buffer length = 4.488" of movement/spring control.

That's how the same spring works in both recoil systems.  Coil bind (compressed length) on the EA1095 spring is 2.448".  I'll bet it would work fine, but maybe there's a very specific reason that Slash offers his very own spring for the RRA LAR-8s.  If you get the H3 buffer, and it doesn't solve everything, and you need to make a spring change, and you use that EA1095 spring on my recommendation - and it doesn't work...   Then you'll need Slash's spring, and we'll all know that in the future.  If that is what all happens, I'll buy that EA1095 spring for what you have to pay for it, with shipping that you had to pay, plus shipping to me for it.  I can always use a spare, and Slash is WAY SMARTER on Recoil Systems than I am...   :thumbup:

 

IMG_9909.heic

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Was that series shot suppressed, or unsuppressed?

You went with the heavier buffer and spring from Slash - wise move - but you opened that gas block back up to wide-open. 

Sorry for the delay in getting back to you. I tool you advice and ordered a heavy buffer and spring from Heavy buffers. I apologize for not earlier making myself clear, but my primary interest is to make the rifle function with the suppressor as I'm not interested in hunting without it. This helps keep my neighbors happy and asleep.

So...  I'm watching your brass ejection pattern, for the most part, and it's ejecting about 2 o'clock-ish, most of the time, and the gas block is wide open.  Cut the gas down - dial it back down.  That BCG is still moving, and it should have slowed down, with the heavier buffer.  But nothing really changed, with the now wide-open gas block.

Only change one thing at a time, when you're trying to diagnose these things.  Compounding the problem - we're trying to do this over the internet, just with pics, or descriptions, or videos...  Not a complaint or a gripe - just trying to let you know that it ain't easy, figuring this stuff out.

Answer what I asked at my opening - just so I have the answers to what I was asking, and can move forward with what I presume. 

My assessment so far - heavier buffer should have slowed it down, but opening the gas sped it back up.  We're at the same scenario as before, at least looking at the vids - but I still don't know if you're still shooting suppressed, like that last vid. If all those stars align - close the gas down, in steps, until this thing is functioning right.  The vids are GREAT, by the way...   :thumbup:  I just need to know the details of what is being shot, IN those vids. 

This is an awesome thread to read, right here - and what we really need, when trying to diagnose gun issues over the internet:

 

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I finally got the rifle working as it should today with the suppressor installed. Since it still appeared to be too much gas pressure even for the heavy buffer and spring, I decided to start over and close down the adjustable gas block. The instructions said to fully close the block, turn the adjusting screw CW until it stops. Fully open is then 4.5 turns CCW. Fully open it and then close it down until the BCG won't lock back on an empty magazine. I started at 1.5 turns open and one round in the magazine with the BCG locking back and the empty properly ejecting.  Repeating this a quarter turn further closed  each time, it continued to show no issues until I tried one quarter turn open, when the BCG did not lock back. I then opened it back to one turn open and this appears to have solved my issue at this setting, I could rapid fire an entire magazine with no further issues. Altogether, I fired another 30 rounds and now have a huge smile on my face and a feeling of gratitude for all the help I received from this forum. This old fart has learned a ton from all of you. The video is slow motion of three rounds being shot.

As an added bonus, after nearly a years absence, sounders have returned to one of my feeders so it looks like I'll get to christen it real soon.

STC_0079.JPG

IMG_9928.HEIC

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