The Kidd triggers are either some drop in parts or a complete replacement. The complete Kidd trigger cost as much as the rifle but everyone who has one raves about it. I have a Kidd "Trigger Job" in one 10/22 and it is very nice.

http://www.coolguyguns.com/TRIGGERS_c_7.html

The Brimstone Tier 3 is done on your existing trigger. I had this done on my takedown and while not as nice as the Kidd, it is so much nicer than the stock trigger. The turn around is about a week, so for the money, as long as you aren't looking for bench rest accuracy, it is a good choice, IMO.

http://www.brimstonegunsmithing.com/...ns/ruger-10-22

As for feeding and extraction, there are many things that can contribute to those problems. I start with ammunition. Some bulk .22lr just won't reliably run in every gun. Buy a little variety and try them out. Second is mags; I try to stick to Ruger mags as they haver never given me problems with decent ammunition. Third, I would disassemble the gun and give it a good cleaning. Bring a tooth brush to the range. If you shoot a couple of bricks, the crud gets under the extractor on the bolt face. Hit it with the toothbrush and get the crud out from under the extractor.

If you are interested in having your bolt cleaned up, CPC gets pretty good reviews but I haven't used them. The guy I used has stopped taking any new work. Que was very reasonable and turned his work around pretty fast, but alas, he is no longer an option. You may want to try C.P.C.

http://www.ct-precision.com/1022rework.html

There are many ways to improve a 10/22. Some people build a 10/22 and don't use a single Ruger made part. The best source of information for all things 10/22 and .22lr in general is RFC

http://www.rimfirecentral.com

Good luck with your rifle.