You must have been reading my mind Sponge! Calculations and projections I have made concerning slow powders and short barrels during the past week indicates that the 158gr bullets are potentially second only to the 147gr overall, with PF numbers favoring the 158gr.
I had actually hoped that the light weight bullets would have been better to continue the bullet weight range compared to the 10mm. Longer barrels are the only way to achieve that.
The disappointment is that 10mm already has bullet weights in the 160gr range that will outperform 9x25 interior ballistics.