Now your back to ammo you can't readily get again .
One other thing you may consider , that ammo was made for specific rifles , it may not perform up to those standards in your rifle , not that it will shoot lousy . but you never know how it will perform .
Magwa , its about time you got into hand loading . You can make any of this fodder with better bullets for hunting , in the same Bullet weight, with the same results as the MIlSpec's posted above . I have no problem even getting SD ( standard deviation ) into the single digits . Though their guarantee of 15 fps SD is pretty good for factory ammo .
Match Bullets will not expand well in all conditions for clean harvest of game animals . No doubt they will put a hurt on them , but not the best choice , do not compare killing a Human to a large game animal .
You can manually cycle the Charging Handle & not extract the Cartridge already in the Chamber ? That's odd .
Not sure about the Armalite Mag's in the Matrix Receivers , but I believe they should lock back the BCG on last round fired , its a good test to see if the BCG is coming back far enough to completely reset the FCG on firing cycle .Try a different brand Mag. , if you can , I have no experience with Armalite products , so someone who has a Matrix set can speak up on what mags to use , but pretty sure Matrix can use DPMS /SR25 type mags .
One other thing you can look into is the Safety , even though you changed it , it still may have tolerance stacking issue with the Matrix Receiver . Try a Different Mag & see if it passes the lock back check & we can discuss the Safety further if need be .
Geissele G2S on sale for $115 with free tool & Swag.
https://geissele.com/geissele-2-stage-trigger.html?utm_medium=email&sslid=MzIxtTQ3MzA0sjAEAA&sseid=M7Y0NjM0MDIxBgA&jobid=1d9d3dc8-156e-4249-a90d-fcddbfa6ddce
Cyber Monday G2S deal $ 115 with free tool & Swag . I just ordered one . I put this in the Coupon section also.
https://geissele.com/geissele-2-stage-trigger.html?utm_medium=email&sslid=MzIxtTQ3MzA0sjAEAA&sseid=M7Y0NjM0MDIxBgA&jobid=1d9d3dc8-156e-4249-a90d-fcddbfa6ddce
If your thinking of a 16" barrel for this , your on the right track , 16" , Rifle length Gas system , muzzle break & I believe a Rifle stock would work for less felt recoil , the Magpul MOE rifle stock is a winner & very comfortable , but nothing wrong with their Collapsible products , just depends on fitment .
Buying or building ?
& Happy Thanksgiving to all .
I had a hose in mine & one in my nose to my Stomach & it was a rude awakening when they pulled the hose out from my Pecker , Damn I ,at first thought they pulled it off ,at least they could have made it longer , it felt like it !
This is not the first State to do this , I'll be waiting for this to play out in the SCOTUS .
There is an interesting twist to that Photo in the article , its on the papers he is holding .
http://www.infowars.com/leaked-document-shows-trump-does-actually-plan-to-build-a-wall/
So , you can't win by being what you were born , so change into a He/She , & you can beat all the real ones . Have I got that right . There is something wrong with that picture .
If your rifle even needs it to be done , for some reason most don't need it altered & its really an easy alteration . I just can't find my drawing they sent or the thread here on it , I'll keep looking .
Been there done that , its why its nice to live here in Florida . It was 44 deg. last night & I had to turn the heat on , but is in the 70's in the day time & will be back to normal tomorrow .
Thanks brother's .
Happy 69th Bday