Yesterday i fired my .54 caliber TC New Englander after installing a Williams tang peep sight. Distance is 78 yards. Powder charge was 80 grains of Black MZ.
The patched round ball was a tight fit in the bore. Ball was seated very hard on the powder. Did not swab between shots. My three round group measured just over 1 1/4".
There is one problem. With the sight nearly bottomed out the group was high. Now i need a taller front sight.