Fox
Star gauge means nothing. They were barrels that just met specific inspection dimentions. No extra effort went into their production. I also had a like new Remington 03/A4 with a 2 groove barrel that was sub moa. no star. Paid $100 sold for $100.
I have been doing this a long time. Am also still riding a 1960 BMW I bought 2 years old.
Have a nice day
Tom