Hi i'm looking for some starting loads to develop moderate velocity loads for a 35 whelen using pistol bullets

I use 55 gn of Vihtavuori 140 and Speer 180 gn TMJ bullets. They shoot well and impact doesnt differ much from my 225 Accubond huntingload.

I think I'll go up to 57 grains of 140 next time since they are quite moderate.