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In the recent past, it has been possible to complete an improved measurement chain connecting the hydrogen Rydberg with gamma -ray reference energies in the range 0.06 < E < 1.1 MeV. Among other applications, these gamma -ray reference energies have been used to calibrate muonic X-ray spectra for tests of QED especially the vacuum polarization terms. Results of this improved calibration of the gamma -ray scale together with improved precision in the mesic X-ray to gamma -ray comparisons have resulted in the emergence of a pattern of substantial harmony between customary QED calculations and experiment. In a second application, the new gamma -ray values are used here as intermediate steps for the re-determination of several high Z X-ray lines where the X-ray to gamma -ray ratios have been previously established with high accuracies. In addition a smaller number of X-ray lines have already been directly determined. Taken together these results produce an interim set of re-evaluated X-ray lines having higher accuracies than were previously available. When these are compared with recently available Hartree-Fock-Slater calculations, a systematic pattern of significant disagreement is evident. (Atomindex citation 11:505508)