This is even cooler...
I bought some of these "segmented hollowpoints" in the same "quiet" load.
I wanted to see 1) whether the accuracy might equal the solids I mentioned previously and 2) whether this segmented HP could really do anything at less than 600 fps muzzle velocity. I was excited to find "Yes!" to both questions.
I set up 3 one-gallon milk jugs and shot into them @ 30 feet. The slug separated into 3 pieces and didn't exit the jug. That means 100% energy transfer...all 30 ft-lbs of it