As a kid, I can recall my great uncle, and my Dad, drifting BOTH the rear and FRONT sight, to get a Model 14 Remington pump on target. They'd run out of reasonable drift on the rear, and moved up front in the opposite direction, which solved the problem.
I bought myself a M94 about 1980, used, for $100 bucks out the door. Sold it for money towards our honeymoon. Bought another in '88 for $125 if I recall correctly, sold it too. Wish I still had one (the carbine). Still have bamawife.