Despite my warning, a nephew bought a 458BM upper from them in '20 and had to return 3 of them before he got one without SIGNIFICANT issues ie bad bore w/rifling that skipped in places, crooked over-size chamber etc. Not long ago they got raided by Feds and many of their "employees" were found to be illegal aliens (arrested and deported). Personally, I wouldn't buy anything from BCA. I'd return it unfired as clearly well under spec. 306 bore or groove diameter? If it's groove dia. I have an SKS and hate to load 2 different size boolits in my cartridges ** Sure I could cast and load 30 cal boolits but what if I want/need to shoot factory bullets?
**Bear Creek Arsenal says the upper has a 300 AAC BO feed ramp. 004 over slugged bore dimensions doesn't seem safe to me.ĭoes anyone have any experience with this? The bullets on the factory ammo I have measure. So I did a little research " Bullet diameterė.85–7.9 mm (0. What size did your BCA 7.62x39 slug out at? I measured it then I slugged it again and again!!!!!!!Īll the results were the same. Naturally, the first thing I did was slug the barrel. I recently bought Bear Creek Arsenal 7.62x39, 16" Parkerized Heavy Barrel, 1:10 Twist, Carbine Length Gas System, 15" MLOK Rail|Side Charging Upper(Gen 2) SKU: 911-UASCH762CHB16110P-15M3 Is my Bear Creek Arsenal upper dangerous?