I have a Ruger 10/22 carbine and its has worked great for me without having to do any mods. (Actually, that's not entirely true; I recently added a pad to extend the stock length.) Its a small-game gun for me and it suits me just fine. I am very happy with the quality of my Ruger. A thorough action cleaning takes care of any jamming issues.
Now, whenever somebody here posts about a 10/22 problem, they seem to get lots of well-intentioned advice on how to spend their money by performing various mods or substitutions with aftermarket parts. I don't know about you, but when I buy a new gun, I expect it to work properly. If it doesn't work properly, it goes back to the store where I bought it or back to the manufacturer, whatever the case may be.
If the 10/22 in question was purchased new, my advice would be; get the gun fixed under warranty. Why should you spend more money to fix a gun that is supposed to work in the first place. Are there warranty problems in dealing with Ruger that I am not aware of?
Ninepointer