Busta,
You are always welcome to come in for a tour!
Our first prototypes used Green Mountain barrels. The company that provides our center fire barrels is The Wilson Arms Co. located in Branford, CT. When we discovered that they were already set up to make a 50 cal 1-28 twist barrel we opted to give them a try. They shoot just as good or better than the Green Mountain barrels. A lot of folks have not heard of Wilson barrels, this is because they only sell to manufacturers & not direct to the public. Cooper Firearms, Rock River Arms, Colt, & I'm sure others as well use a bunch of their barrels.
Wilson barrels are definitely match grade. They are button rifled, lead lapped, air gauged, & double stress relieved at the Wilson plant. They are stress relieved after boring/rifling & after contouring. The interior finish of the bore is nice & shiny like a mirror when viewed through a bore scope!
I would encourage the curious to give Wilson a call & chat with them. The owner might answer the phone.