"B" = 1950 ("A"=1949)
Possible remedies:
- Remove the elevator completely?
- Reduce height of notch in rear sight leaf?
- Put a taller front sight into the front sight ramp dovetail?
- Given lighter bullets hitting lower than heavier, is it possible that you are just getting a pattern instead of groups? (Are you shooting 3 or more rounds to determine where bullets are grouping?) Maybe barrel is dirty or pitted?
I seem to remember some Marbles rear sights having an adjustable rear sight blade (sliding, with retainer screws).
