I don’t think GA6 is majority black, but it may be in the mid-40s black.
The Republicans redistricted Newts old district after he left to make Republican districts around it stronger that were even. They also shoved a lot of Democrats into one district to weaken their showing in other districts.
Since then Republicans have had pretty much Cart Blanch in the state House. Worked for them in the state, but it extremely weakened a district that once saw Democrats seldom challenging when Gingrich was Speaker.