I just got in a couple thousand 130 grain jsp from precision delta. Just under 10cpr. I got them because they were cheaper than any other jacketed bullet and i wanted to try some.
Depending on accuracy they may just be for uspsa this year to help with fouling.
I highly doubt i could load them fast enough to get expansion with my m66. Maybe my 4" m19 but im still sceptical. Now my 20" M92 is another story. 9gr unique looks like i should get 1700fps. Over 2k with other powders.
Might be a cheap small game bullet. Beaver, coons, yotes, etc.
I dont think water jugs are a realistic media but could they at least be used to show if a bullet will expand in real life?