Hello,
Having a problem with the first AR upper I have built...using my 80% lower.
It fires, but does not eject the case. at all. Side charger.
If I rack the bolt, the fired case ejects, and strips/chambers the next round.
60g Vmax, VVN 135, 23.5g CCI 450 primers, 1X fired Norma brass, fl sized ( shot in another AR w
5.56 nato chamber) approx .002 setback.
I didn't have or try any factory 223. fwiw.
22" Krieger .223 "match" chamber" 1/7.7 - chambered by Krieger
* the tube is centered in the gas key - does not bind
* rifle length gas, melonited gas tube
* gas block installed by me - think it is from WOA. good fit .750" as I recall, not pinned, I clamped
to bbl using allen screws supplied
* JP bolt, A Arms upper /side charger, AA carrier
I tried this same load in another 223 1/8 upper, with the same lower - perfect function.
In looking at the Krieger chamber, it looks well, rough, compared to the other AR.
Could this be the problem, too tight a match chamber? and not very smooth.
Or could my gas block be not centered, too far forward/back, not over the gas hole in bbl?
gas hole in bbl blocked?
any info appreciated.
thx.
Having a problem with the first AR upper I have built...using my 80% lower.
It fires, but does not eject the case. at all. Side charger.
If I rack the bolt, the fired case ejects, and strips/chambers the next round.
60g Vmax, VVN 135, 23.5g CCI 450 primers, 1X fired Norma brass, fl sized ( shot in another AR w
5.56 nato chamber) approx .002 setback.
I didn't have or try any factory 223. fwiw.
22" Krieger .223 "match" chamber" 1/7.7 - chambered by Krieger
* the tube is centered in the gas key - does not bind
* rifle length gas, melonited gas tube
* gas block installed by me - think it is from WOA. good fit .750" as I recall, not pinned, I clamped
to bbl using allen screws supplied
* JP bolt, A Arms upper /side charger, AA carrier
I tried this same load in another 223 1/8 upper, with the same lower - perfect function.
In looking at the Krieger chamber, it looks well, rough, compared to the other AR.
Could this be the problem, too tight a match chamber? and not very smooth.
Or could my gas block be not centered, too far forward/back, not over the gas hole in bbl?
gas hole in bbl blocked?
any info appreciated.
thx.
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