As was stated - not uncommon for the 10/22 -
Pretty easy fix though...
Purchase a Volquartzen extractor and while at it buy the Volquarten hammer. Easy to install - your problem should be pretty well cured.
If you do purchase the hammer - only install the hammer and not the springs - leave the Ruger springs in. These two changes will make a world of difference. :-) Buy much ammo and shoot alot.... :-D :-D