Snip a coil off the spring, file a little off the sear engagement, polish the bearing surfaces. Probably something else could be done, but that's what most amateurs will do. You can do a search on it, and some sites will have diagrams with what to file, what to polish, etc.
Amateurs? what do the professionals do? I know the one who worked on my vanguard when I sent it back to a factory authorized service center for repairs scratched the schite out of it and gouged it with something. That's why I don't let someone else work on my rifles.
