That Hornady data for the HS-6 powder at maximum load........

was very safe in my C9 3.5" but you might want to try just
6.2grs of HS-6 with a 115gr RN plated with a oal of 1.14"

This should be at 1010fps depending on barrel length and very accurate
for a low pressure target load in Fac or Milt. cases.

Safe loading.