The worst trigger I have ever owned is actually two triggers, It was marketed for a time by Remington as the SPR94 (Special Purpose Rifle), It is just a rebadged Baikal IZH94 over and under. It is a 12ga on top of a 223, never found a trigger pull gauge that would go high enough but both triggers are well over 10 pounds.
Never found a gunsmith that would touch it.