Gentlemen,

Thank you for your efforts and great help in figuring this out. I thought that my measuring gauge does not read correctly, but I checked against another one, a gunsmith's.
I cannot find any sign that the barrels were relined.
Maybe the proof master made a mistake marking these barrels?
Raimey, I have seen other recent (past '89) reproofed barrels and they show the metric markings of the bore without the "mm" along with the gauge and chamber lenght and the pressure in "bar". I believe Cabela's have a few of these reproofed guns.