From my Speer manual #10
" The 146 gr. HP and 160 gr. SP straight-sided jacketed bullets may separate core from jacket at low velocities, with the possibility of the jacket remaining in the barrel. The lighter charge for each powder should be considered MINIMUM."
I have used both the 146 gr. .357 and 225 gr. .44 bullets and really liked them. To bad they are no longer made.