Although I do not have the knowledge or expertise to elaborate on the Terminal Ballistics of the 9mm pistol cartridge or your chosen load in partiular. I can comment on distance shooting with the 9mm round.
I have on several occasions shot and hit distant targets with both a Sig 226 Navy and a Glock 17 both chambered in 9mm. With the Sig, I have fired at a standard ALCO BT-5 Sihiloutte at 100 yards using a 15 round magazine and kept 12-13 shoots center of mass, firing while standing from an unsupported position.
With the Glock, I once frequented a target range with an 8" steel gong target set at a laser ranged distance of 127 yards and could consistetly strike the target, firing off-hand from an unsupported position.
In addition, with an Uzi Submachince gun, I was shooting with my uncle, we were hitting targets at 200 yds plus with the selector set on 3rd burst and semi-auto.
The bottom-line, with some practice/ training you would be surprised how far away you can hit a target with a pistol. In the near future, I plan on buying another Sig chambered in the .357 Sig cartridge. Now there is a cartridge that I would like to really shoot far away with sometime.
Finally, the best way to become a better pistol shot is by shooting A LOT. If you don’t already have a .22 LR pistol, consider purchasing one. Shoot it for a while and watch how much your accuarcy improves with your centerfire pistols.
I can’t even guess how many thousands of rounds of .22 rimfire I have shot in my 30 plus years of shooting guns. It has been a substantial amount. Acquiring skill requires dedicated practice and training.
As for the training, find a local NRA chartered shooting club/ range. This way an experienced trainer can point-out any corrections which may be needed with your grip, stance, sight picture, and/ or trigger control. You may already be doing everything right, but it doesn’t hurt to verify it. Also, remember that of all the firearms, the handgun/ pistol is the most difficult to master.
Keep shooting and keep it fun.
If I can manage to find the time, I will try your course of fire myself.
Regards
SkiDevil
P.S. The history channel runs a program about Shooting/ Marksmanship. One of the shooters show cased, I believe that it was Bob Mullins, is shown hitting targets with a Colt 1911 in .45 ACP at 300 Yards!
They re-run these shows on the weekend frequently or you can order the episodes online via the History Channel.