Maybe I should reconsider?
Today I shot two groups of five .454 balls and one group of 45 colt. Each group was five shots. 25 yard target but set to 10 yards. No cleaning between groups. Two groups of balls then one group of 45 colts.
1. Balls - Hornady .454 w/30 grains Pyrodex P and wonder wads
2. Bullets - J/P Big Lube .452 w/40 grains Pyrodex P
3. From a rest on a forked stick, gun resting on fork on loading lever with slight downward pressure.
In the picture
My first three shots were high and grouped 1 1/4".
Adjusted aim about half way down front sight. Last two balls from first group hit low and to the left of bulls eye. Grouped 1/2". Using original sighting...1st shot of second group hit, again, high just a top first group making that area 1 11/16 grouping.
Using adjusted sighting, last four shots of second group hit the bulls eye area grouping approx 1".
The third grouping was using second and last adjusted sighting. First shot hit high and to the right of bulls eye. Second shot hit low to the left of bulls eye while the last three grouped inside the bulls eye.