Originally Posted by
ggggr
At a guess Gerard,If you are sure you have put it together right and ( hooky bit of sear spring on the sear and the leg of it goes up to the relieved bit of the trigger guard) the trigger and sear might not be aligned. Turn your gun upside down and have a look at the trigger and sear. You should be able to see the long leg of the sear,between the trigger and the sear stop pin. If you cannot see it then you need to pull the trigger and fiddle with a small screwdriver or rod and push on the short bit of the sear to rotate it until the long leg is visible and then release the trigger. With this though, the barrel usually gets just over vertical, maybe 100-110 degrees to the cylinder. If everything looks ok, then before you strip the gun again to look if the sear spring is broken, look at the trigger adjusting allen screw. These often undo and can foul on the trigger guard when cocking. These sounds more like you 132 degree thing. If it is fouling, then a touch of thread lock and wind the screw in.