when you have the barrelled action out of the stock, turn it upside down with the trigger facing up and try cocking it. see if the trigger resets, if not you need to adjust the trigger. had that happen to me today on an older 110 3screw trigger. when rifle was in upright position it wouldn't reset the sear, take it out of the stock and it was fine. just got the rifle in today and was thinking something was wrong, that's all it was. had to readjust the trigger and all is fine. got it down to a nice 2+lb pull.