My best accuracy has come from the CCI Maxi Mag +V hollow point, then the WW 40 grain hollow point. About 1.25" at 100 yards with the CCI, about 1.5" with the WW load.
In rifles, I haven't found any "bad" .22 mag loads. I've had quite a few .22 mag revolvers (convertibles, etc) that were load-sensitive.
