As far as I know BE-86 is the improved version of Power Pistol. I found one set of data in my Reloaders reference for 135 JHP in 10mm: 10.6gr Power Pistol, Velo = 1530, Qal = 1.25, Pressure = 35600.
I thought about loading some 135gr in 10mm myself but most advised against it. At some point I'll try it anyways.. just for funsies. But not before my chrono is working properly.