You should have no problems getting a clean crisp trigger if it is in good shape still. I have gotten my model 700 .223 and newer 700 BDL down to about 3 pounds which is the way I like it as long as their is minimal travel and a crisp release.
I have had more 700's then I care to talk about and have done the triggers on about 10 of them. Out of the ten I can say 2 ended up as well as a trigger done by the guy Chartboy recommended or my gunsmith. The rest after I did them went to my Gunsmith or Triggersmith and were real triggers when they came back.Triggers are not something you want to fool with if you have the slightest doubt and a Remington trigger is borderline as it is. Some of these sites recommend playing with the sear engagement. True the weight,overtravel and engagement are screw adjustable but some triggers need a different spring and they all with very few exceptions need some polishing.