Do not use that adjustment set screw to try to take up slack.
The Remington has a firing pin safety like the Colt Series 80.
The set screw on the trigger is to adjust the overtravel.
If it is adjusted incorrectly, the firing pin plunger will not move up high enough into the slide for the firing pin to clear. The plunger then gets "nicked" and can cause a "non-fire" malfunction.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)