The susceptibility series presented by Aharony, Harris, and Meir [Phys. Rev. B 32 3203 (1985)] for the random-field Ising model and dilute antiferromagnet in a field are reanalyzed. This reanalysis utilizes improved methods of power-series analysis, more recent Pc estimates, and a redefined constant term. We also invoke updated exponent estimates for comparison with our results, and find that new estimates of for the two models are consistent with each other and with the scaling value from the literature estimates.