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RedRaider

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Reply with quote  #26 
Will check gas tube when I get home/away from home! Will check gas port size also
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jwtharpe

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Reply with quote  #27 
If everything is free cycling by hand and your block is all the way open, check for a leak under your gas key. Also check the gas path for obstruction.  BD is right, 30gr. of BLC should cycle your upper with regular parts. BLC gives more port pressure than 335, Benchmark, and 8208. If it wont cycle blc, then it wont cycle any of those. 

If you get tired of messing with it just throw it in a box and send it to me. I will get it running for you no problem. 

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wikster1983

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Reply with quote  #28 
Quote:
Originally Posted by RedRaider
Wikster. Have taken off 3 times now. Physical looked in the hole and opened all the way. While shooting it the other day I almost back it out too far was leaking gas around adjustment screw.
Sorry, missed that part. Then I'm at a loss for whats going on, unless you have something pysically locking up creating a bind of sorts or gas not getting where it needs to be (which you already checked).

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RedRaider

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Reply with quote  #29 
Forgot to say I formed my virgin brass using the technique on this forum, but I bumped the shoulder 1st with 222 die and made sure they would go into battery with hand pressure and eject effortlessly per instructions. How r y'all measuring HS?
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RedRaider

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Reply with quote  #30 
Wikster1983 what did ur primers look like after 30.5 grs?
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wikster1983

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Reply with quote  #31 
Quote:
Originally Posted by RedRaider
Wikster1983 what did ur primers look like after 30.5 grs?
Only very slightly flattening, edges still slightly rounded actually. I missed the form with .222 die part, I have just been forming with mongoose die, trimming slightly long , then shooting to fire-form.

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RedRaider

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Reply with quote  #32 
Here is virgin brass on right using 222 die to form shoulder first then use mongoose die. FF brass on left. 222 die makes for pretty virgin brass

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RedRaider

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Reply with quote  #33 
Current gas port photo, can see where gas was leaking out of adjustment screw/about had it all the way out, so gb all the way open--- can blow air thru gas tube, so open----Allen bit that is about.865-.870" fits in gas port easily, so gas port is correct--- nothing in buffer tube--lower is my 18" wolvie lower, functions flawlessly with wolv--upper is stag arms--- bcg is out of my 16" wolvie, works flawlessly in 16"--IDK!!!!

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wikster1983

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Reply with quote  #34 
When you blow air through tube can you increase effort to push air when you adjust set screw? If yes, then well you have a ghost in your rifle and it's pissed for some reason! lol
Far-fetched idea: Is there a forward assist? something catching there under recoil? Again very far-fetched, and I know it is.

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RedRaider

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Reply with quote  #35 
Biggdawg the 30.5 gr charge brass holds 31 gr of water. Several others average 30 grs
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BIGGDAWG

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Reply with quote  #36 
Quote:
Originally Posted by RedRaider
Biggdawg the 30.5 gr charge brass holds 31 gr of water. Several others average 30 grs



fyi here is ql run with 30 grains case capacity as you can see you won't get enough in the case to have a problem with blc2.

with wikster testing the same load and it cycling there is a problem we just have to get to the bottom of it.

don't know your oal but i load my shots to 2.09-2.1

i will run the 30.5 load in mine tomorrow and see my fired cases have 31.4 grains case capacity.

55 shots blc2.JPG 


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RedRaider

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Reply with quote  #37 
Oal is 2.13" with shots
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BIGGDAWG

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Reply with quote  #38 
Quote:
Originally Posted by RedRaider
Oal is 2.13" with shots


that won't do much if anything to pressure may drop the pressure a touch but no significant change.

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Rifter

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Reply with quote  #39 
Quote:
Originally Posted by RedRaider
Current gas port photo, can see where gas was leaking out of adjustment screw/about had it all the way out, so gb all the way open--- can blow air thru gas tube, so open----Allen bit that is about.865-.870" fits in gas port easily, so gas port is correct--- nothing in buffer tube--lower is my 18" wolvie lower, functions flawlessly with wolv--upper is stag arms--- bcg is out of my 16" wolvie, works flawlessly in 16"--IDK!!!!



If you're getting leakage and soot around the screws, then I would suspect the gas block is not quite tight enough.  Have you tried a non-adjustable gas block?  Have you used Blue Loctite to seal the gas block to the barrel journal?  Wouldn't take much of a leak at those pressures to drop pressure to the point where you get erratic function.

Looking at Bruce's QL data, seems like you need to bump up the load to 31 gr. or so.  Assuming the headspace is correct, if you're getting flat primers you may not be able to do that though.  Have you tried 2200 powder?  It is slower than 1680/Blackout, and generates lots of gas.

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RedRaider

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Reply with quote  #40 
Leakage is due to me having screw almost backed all the way out of gb ( like 1/2 -3/4 turn it would have came out) to make sure it was wide open. Loaded one FF brass with 31 grs, will shoot it today. No 2200 on hand. Have 8pcs loaded 30.2 virgin brass
9pcs FF brass loaded 30.2.
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RedRaider

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Reply with quote  #41 
ETC: Are y'all using the Hornady .330 to measure HS? What should it b? Mine measures 1.433" on fired brass. Bump back to 1.430" Just measured virgin brass HS. 1.415-1.418"
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RedRaider

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Reply with quote  #42 
No, I did not mean that. Didn't have numbers in front of me and trying to go off the OLD memory of mine.

I'm cleaning the hell out of it now( coffee filters make great cleaning patches). Could this be a problem causing drag? Burs!!

Edited: 1.433". Resize 1.430"
Thanks Ranger-- made me look!!! Old mind is slippin

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wikster1983

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Reply with quote  #43 
What does your bolt look like? scrape marks? burrs? excessive wear? or nothing out of the ordinary?
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BIGGDAWG

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Reply with quote  #44 
i just loaded 6 rounds with 30.5 grains of blc2 and the 55 grain shots i say 31.5 in the video but these were 30.5 and that is a full case on these cases.

as you can see they ran fine only reason bolt didn't lock back was i was resting on the mag.

i recommend if you are still having problems to ship the complete upper to either wade or me and we will get to the bottom of the issue for you at no charge.


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RedRaider

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Reply with quote  #45 
Not going to believe this!!!!
Ran good today still had a couple of no bolt hold open, but that could have been the pmag. Here is video and pic. I spent the day cleaning and recleaning and recleaning. I thought I cleaned it really good the first day after I got it. Who knows!! Blue target @225yds with shots --second pic of same target after some wolvie hits--pic of brass is ff brass with 30.2 grs. Silver one was full up to half the neck with bullet shoved on top. The one that had yellow paint on the head (now no yellow) was loaded with 31grs -- other pic is of virgin brass loaded to 30.2 grs blc2. Thanks for all the advice and help or willingness to help. That is why I. Love this forum and the Cats that r created here, bc the support of the other members. Thanks a ton

I lied can't just add a video. Sorry

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BIGGDAWG

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Reply with quote  #46 
glad it is starting to run for ya, good thing about blc2 you won't be able to get enough in the case to blow anything up lol.
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Rifter

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Reply with quote  #47 
Quote:
Originally Posted by RedRaider
Are y'all using the Hornady .330 to measure HS? What should it b? Mine measures 1.430" on fired brass. Bump back to 1.40" Just measured virgin brass HS. 1.415-1.418"



I believe the correct one is the 'B', same as for the Wolverine since both use the 5.56 case.  But, its all relative as long as you use the same one for everything.  A .003" bump is what you're after.

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BIGGDAWG

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Reply with quote  #48 
Quote:
Originally Posted by RedRaider
Are y'all using the Hornady .330 to measure HS? What should it b? Mine measures 1.430" on fired brass. Bump back to 1.40" Just measured virgin brass HS. 1.415-1.418"


yes the 330 insert is what you measure with.  my fired cases are 1.263 fwiw

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