The underwood loaded controlled chaos shoots lights out from my 7mm08. Killed a cow elk at 200yds this past November, I put 3 behind the shoulder in about 8 seconds, she tipped over a few seconds later.
Killed several deer with the 145gr Brass chaos out of a .30-06 a few years back. They worked well and killed deer about as quick as one could hope.
I did shoot a bear with the 122gr chaos bullets out of a 6.5 PRC, shot it three times for good measure through the lungs but the first one would have killed it. Entrance hole into the rib cage was 2” diameter due to the fat layer and all three exited even the one that clipped the bottom of the spine on a hard quartering shot.