I purchased a .223 Savage Edge last Sunday. Yep, trigger pull in mine was a might heavy too.....so, took a look at trigger mechanism....noted it was different from one in a Stevens 200 in kind and location of spring that keeps pressure on the trigger.
Spring in Edge is a coil one that is about 1/4" diameter on one end and 1/8" on other. You have two options on dealing with this spring. You can shorten length of 1/4" coils or make your own spring. Have read a couple of posts elsewhere of using a ball point pen spring to replace this spring. But after looking at 4 or five different ball point springs, didn't like idea of their use.
I understand Savage has not made a replacement spring available yet for the Edge trigger. So, if you mess up your spring, you'll have a problem getting a replacement new spring. But if you are bold, can snip off larger diameter end of spring a small piece at a time, say 1/3 of a coil, reinstall and try and repeat snipping short pieces of spring till you are satisfied. Warning, Cut too much spring, spring is loose or not enough pressure on trigger to prevent accidental release of trigger when bolt slammed shut or butt hit against ground.
Went to my local Ace Hardware store that has a good assortment of springs, found one right diameter as 1/4" end of Edge spring and had thinner/weaker wire in it. After cutting off right lenght of Ace spring, took a brass screw with shank large enough to fit inside ACE spring and JB Welded shank into end of spring. Of course I removed most of head of brass screw and its threads. Now I had a new spring that would fit trigger mechanism properly. It did help reduce the trigger pull. I checked strenght of spring to prevent accidental missfire by slamming bolt shut hard and banging butt of stock on hard surface.
After trying the new spring, decided to do some polishing on the side of the trigger that has a notch. I will take some 1000 grit sandpaper to do this, basically just removing the black Oxide(?) coating. I will also polish the tip of the mechanism that rests in the notch when rifle is cocked. This too helped trigger pull. Word of caution on this polishing....potential of harming surface hardness of metal if too much done.
Disclaimer.....use my suggestions for reducing trigger pull at your own risk.