Anyone know how to adjust the set trigger on the CZ 550? i know there is a small screw in front of the trigger but any advice is welcome.

If you don't have your manual which describes the function of all 3 screws, than here is a link to an electronic copy. When your done adjusting, make sure that with the action cocked, you can hit the receiver hard with a rubber mallet without having the firing pin drop. Then put the action back in the stock and hit the but against the ground just for good measure.

CZ 550 manual

Wes

Got a reply from Mike at CZ. To lighten set trigger pull turn screw to clockwise and the other way to do opposite. This is temp sensitive also and may need readjustment with climate changes. In other words be careful when using set trigger.