Cold Working in Short Transverse AL 7000 Series

I run in this limit more often with respect to bushings. As a rule at at my current employer we don't bush holes in the S-T grain below 1.2 e/D. 7075-T6 is worse than 7249. The real driver behing a limit is the SCC threshold per ASTM G47. This allowable is 5ksi for 7075-T6511 is the S-T grain. Based on you interfercence fit, you should be able to calculate a hoop tension stress induced. This is more easily done for bushings than coldworking. I suggest you contact FTI to see if they tell you this residual stress based on what tool you're using for you coldworking operation.