The 120-123 class won’t group what is going on

[DIANEB]

Dt219, Have you tired Accurate 2520 powder? I've been having very good luck with it... I'm loading the SST 123's with 28.5 gr of 2520 and CCI 450 primers getting groups close to 1/2" at 100 yards...
Also getting good groups with the 130 ELD's and 27.5 gr of 2520...