1022V Concentric Circles when Facing? Loose gib?

[mattthemuppet2]

My money would be on bent cross slide screw. The X axis screw on my mill is slightly bent and I get the exact same issue. One way to test is to figure out the pitch of the screw and measure the peak to peak (or valley to valley) distance of the bands. If it's a bent screw then the distance should equal 1/pitch.