I will definitely try the spring kit first!
I really guess I would have thought that by purchasing a " Major Manufacturer's " like Smith and Wesson, the end result would be a firearm of outstanding quality not a hit or miss trigger. Which is why I have owned more Colts in my lifetime ( age 49 )...
Dry fire! Some do peen the chamber face, some don't. The 15-22 Smith doesn't. And if it did that's, what a file is for! I am not afraid to break my guns and then fix'em.
I have a 3lb Timney trigger in my Colt H-Bar and it's trigger parts stored way. But, before I go to that extreme, I will...
I just got my replacement S & W 15-22. My first one had an out of battery round go off and broke the extractor. The distributor offered a relpacement and had it overnighted. Nice! But this trigger is so creepy and hard I'd rather have waited for my first 15-22 to get fixed. What do you think...