For me 115 grain fmj loads most accurate , clean and low flash powder is WST, followed real close by N320, HP38, N310, SR 4756, WSF and Solo1000.
For 124 grain fmj N320, N310, WST
For 147 grain plated only one powder given me great accuracy is Solo1000.
Note the barrels are with a 1:16 twist rate out of Glocks. After market barrels.