Well, I am pretty sure I know the answer, but I have had fixed sights or adjustable and have never had the need to drift a sight. I have a Tisas that is 2 inches left, at about 30 feet. Elevation is perfect. So I need to drift the rear sight. My guess is, that this is trial and error? I bought one of the Wyoming sight tools that is kinetic in nature. These were highlighted in last month's American Rifleman.
So just tape mark it, and drift it a tiny bit, lock it back in, and try it out. Add more or less drift as needed. About it?
So just tape mark it, and drift it a tiny bit, lock it back in, and try it out. Add more or less drift as needed. About it?