I HAVE used the 150 grain Partition in the .270. In fact most of my hunting with the .270 has been with various 150 grain bullets as the one "flaw" I've seen with the typical 130 grain/.270 loads is a sometimes lack of penetration due to "excess" expansion.
What are shooting with it? Mostly deer? In 26 years of deer hunting, I've never seen this "flaw"...in fact I've never shot a deer with the 270 with anything but 130 grn C & C's.... and all have been pass throughs. Maybe on a hard quarter shot I may one day catch one but haven't yet but I don't know why you say they lack penetration....sounds like a bullet choice rather than a cartridge issue to me.
