Went shooting some old loads I found here for the Manton.

5 shots fired at 50m offhand. 1 went a little high. The four best are 6x7" group.
The load are 60 grain Blue Dot pushing a 990grain ball.
The gun group best with 63grain BLue Dot.(I am out of these)
Aiming was 6 o`clock between black & white. Next time I`ll bring a brass rod to adjust the rear sight to point-of-aim. I feel this gun is more than ready to buff. I must chronograph the final load.

Do I really need a .577express?...