I just ran 120 rounds of 9mm through my CZ-75 and starting to clean it. My load is:
Win. small pistol primer/ 3.3 grains RS Competition/ 115 Xtreme/ OAL 1.140" Vel. 955 fps
My CZ-75 is extremely dirty both inside and out. I have shot many pounds of Unique, Bullseye, and Red Dot, which are supposed to be dirty burning, but have never had fouling this bad. This load shoots well but, the fouling residue reminds me of Black Powder.
Has anyone else experienced this? Thanks