Wow, there are a LOT of people on here who have obviously never shot a .22 for accuracy. If you have a 10/22 with a decent barrel (typically with a "Bentz" chamber) don't be surprised to see your group sizes cut in half if you try subsonic ammo. You'll also notice that it feeds and cycles perfectly.
There's a reason the top .22 match ammo (Eley Match, Eley Tenex, etc) is subsonic. The shock as a bullet's velocity drops through the sound barrier and compressibility becomes a factor is one of the biggest disrupters of accuracy. Same reason long range center-fire competitiors make sure that their bullets stay supersonic all the way to the target. You either want to be completely above or completely below the sound barrier all the way to the target. Crossing the barrier is not good for stability.
The subsonic .22 loadings such as the Remington subsonic, Eley Match, Eley Tenex, CCI Green Tag, etc) are the standard for accuracy. I've never seen a 10/22 that had a problem cycling them. All three of my 10/22's love the CCI Green Tag and will easily shoot .38" groups at 50 yards with it.