Over the years, I have found two particular, regular priced, rounds that seem to be accurate in more of my 22s than other ones. They are CCI Mini-Mags and Winchester T-22s. I usually start my new rifles on them.
Of course, any given rifle has it's favorites...and they may not be one of those two...but from my experience, the odds are great that your rifle will like them...Just my two pennies...