Apparently, unpiloted reamers in CNC machines that are not correctly set-up are the 'norm' for these outfits.
The 'tacti-cool' crowd would probably never notice as they're rolling around on the ground and worried more about looking like an 'operator' than hitting anything they point their rifle toward.
Guess that shows a bias on my part. Sorry. I've seen one too many of these idiots on the public range.
Good luck in your quest for a properly chambered barrel. Makes me wonder what the bore diameter, twist rate and crown looks like on these things . . . .