Just got the skinner express sight for my brothers steel receivered browing blr. Well it shoots like 18 inches high at 50 yards with the factory front sight, rear peep is down as far as it will go. Now I did the calculation to figure out how much sight change is needed and I came up with .23 of change needed. The factory front sight is .430 from bottom of dovetail to the top of the sight. So my question is do we need to get a front sight that is like .6" tall?