I run HS-6 in my 9mm open steel gun with 6.5 grains and a 125 lrn at about 1160, the gun runs great, very accurate. The can has this load information on the label for 9mm, 6.8gr, 124gr Sie. FMJ, Win case, CCI500, COL 1.090, VEL 1169, maximum loads-reduce 10% to start. Go to Hodgon's web site and they will have more data.
The powder meters very constant thru Dillon 550.
My open gun is a Para-ordinance 9mm built by Jim Anglin, this load keeps the comp clean.