Polishing sear engagements --
fine, fine Arkansas stone and you MUST keep all the geometry on the sear surfaces as milled. You polish the surfaces and "smooth" the edges. But you need good light, a deft hand and a 10x jeweler's loupe.
Remington web site will tell you to leave the trigger alone. It's "factory adjusted."
Whatever they pay their attorneys, it's too much.
The other isssue with the Rem. 700 is too much free bore between the ogive on the bullet and the engagement on the lands in he barrel.
We fixed all that on a Rem. 700 PSS. Set back the chamber, opened it to .223 Ackley. Then installed a Jewell trigger, and got that down to about 6 oz.
4 - 14X 50mm Springfield rangefinder scope and with some precision loads I was whacking AA Large eggs at 300 yds. -- off a bench.
But all that stuff gets really, really over the top.
You'd be happier with an old Mauser and some surplus, corrosive 8mm ammo from WW II.
-- I know I am.