afvoo52,
The ammo that I shot from it was WWB 115 gr. FMJ, and Blazer Brass 115 gr. FMJ. That is all that I had on hand to experiment with at the time. I used the WWB 230 gr. FMJ loads in the Expert, and the XD45.
My Expert will shoot just about any loads into less than an inch at 25 yards - off a good rest. I have yet to find another auto hand gun that will shoot as accurately as this H&K target pistol (haven't tried the Sig P210). That said, it would be my last choice for a carry weapon, because it is just too big. The grip circumference is just too large for me to reliably control in a stressful situation, and when my hands get sweaty, I just have a hard time maintaining a proper grip. It's length is also just too much for me to comfortably carry & conceal.
I intend to try some of my 124 gr. handloads in the Phantom, because the Hornady XTP bullet in that weight seems to provide excellent accuracy from my other 9mm pistols. Maybe the Phantom just prefers something different than what I fed it. It is a supremely comfortable pistol, and fits my hand like a glove! I do wish that CZ would have provided me with both contours of the removable backstrap. They mistakenly shipped two curved ones with it, so I have not been able to evaluate the flat unit. I did call them last Tuesday, and left a message about the omitted backstrap & included my phone #, but no one has returned my call.