Oliver,
Just out of curiosity, what was your point of aim on that target? Bullseye, bottom black ring, bottom of the target, etc.
I shoot my uberti pocket models at a closer range than 25 yards, but am pleased with the way they shoot using 10 grains of 3f. I also use a conical bullet cast from an original pocket model mold. At one point I had some cast round ball that I got from a popular online source, those seemed all over the place regarding accuracy. Both the round ball and conicals I've cast from the original mold are more accurate, they weigh more and have a larger diameter.
btw, AKexpat - great looking piece..yours too Oliver. Would love to have a pocket with a 6 inch barrel.