Lex, Good advice given. Keep your Gun Clean & simply try different Brands & types of Ammo. Hollow Point vs Solid etc. Everyone with .22 experience will tell you what their Gun shoots best, with MATCH Shooters (generally) being very Particular, or more so anyway...
I like the Federal Bulk 38-40 Grain Hollow Points, or American Eagle (same thing)
GO HAVE SOME FUN!!!