MAKE SURE THE GUN IS UNLOADED/EMPTY/SAFE!!!! Look directly at the bore of your Woodman. You should see a small screw in the base of your front sight. That's your adjustment screw. Also, on the back of the sight you should see some engraved lines to which you can adjust to in case you want to say, for example, sight it in for 25 yards at one setting and at another setting, 40 yards.
If you have a true Target Model - this should do it. Let me know.
GunStudent