Bear Creek Arsenal Complete Uppers

[Dcommoncents]

BCA strike two.

Got the upper back today finally. We an upper. It fit looser than the first one and the chamber throat is SHORTER than the first one. Loaded rounds have the bullets set back 0.035". Nosler 120 BT should have a col of 2.245" and they measure 2.205" just touching the lands. The loaded round must have been jammed into the rifling when it chambered.
the first barrel yielded 2.234" just touching the lands .

Suggestions?

I can't say I'm surprised given that my experience with BCA is limited to one upper, but I am disappointed that you're still having issues with chamber length. Have you shot it at all yet? I wonder because I never saw a need to check the chamber length on my barrel since it was putting out nice groups of Hornady Black from day one, but if yours shoots well with the short chamber, then I may need to rethink that so I'm not unwittingly setting bullets back in the case. I haven't noticed any overpressure signs on casings though.