I have used them quite a lot, found them to do what they are supposed to do. Blow the nose off, heaps of "shrapnel" in the wound channel then the left over sabot punches on through. Mostly use Woodleigh's now (closer in hunting for heavy punch) as I think they work better in their velocity range and am having success with ACP's in my longer range shooting (mostly punching steel plates) at faster velocities to flatten out the trajectory. Obviously just my current experience could change next year