Faxon 308 No Feed, bad barrel & bad QC issue details - M5 AR10

Took 3 barrels to get one with a decent finish, then once completed it wouldnt work anyway. They forgot to machine the taper on the barrel on the barrel extension side. Closing the bolt FMJ ammo would jam and lock half way in, no taper to guide it into chamber. Shorter bullets, SP and more round nose would feed but the longer FMJ would not make it and actually dented the barrel where they locked up... details of the issue in vid. I ordered a BHW one before i contacted the place i got this Faxon, since it had been 5 months i did not expect anything.. but AT3 Tactical were awesome and sent me a BA premium exchange for free. Comparison of the BA in vid. Also Faxon's muzzle end has issues as well. Faxon helped me early on with sending me 2 barrels, but later on with my feed issues they would no longer reply to emails or even the chat window on the website...