I have found X22LRPP super x powerpoints (not dynapoints) to be exceptionally accurate and consistent for a commercial high velocity round. It shot well in every rifle I tried it in, and in some of my rifles it was more accurate than most brands of expensive match ammo. I have not obtained similar results with any other super-x variant. Super x 40 grain solid and 38 grain HP were not good performers for me. Some early lots of dynapoints produced surprisingly good results, perhaps because they are subsonic when fired from semis and long barreled bolts. I stopped using dynapoints a few years back when consistency fell off, some rounds were subsonic and some were not.
Year after year, Powerpoints have never let me down.