@tcecil88I just ordered a BCA 16" .22LR upper and magazines for a squirrel rifle I am putting together. I also ordered a couple more magazines for my .50 Beowulf rifle.
Well, my BCA .22LR upper came in today. I am pleased with it overall. I posted a thread over in the reviews.@tcecil88
See this post. Since that was written I have reprofiled the firing pin. Removing approximately 30 - 40% of the face nearest the center of the cartridge face.
I was able to achieve consistent ignition, even with the Federal ammunition.
Good luck!